/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/freire2_unwindbound10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:53:18,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:53:18,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:53:18,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 14:53:18,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 14:53:18,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 14:53:18,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 14:53:18,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 14:53:18,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 14:53:18,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 14:53:18,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 14:53:18,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 14:53:18,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:53:18,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:53:18,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:53:18,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:53:18,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:53:18,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:53:18,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:53:18,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:53:18,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:53:18,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:53:18,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:53:18,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:53:18,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 14:53:18,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 14:53:18,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 14:53:18,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 14:53:18,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 14:53:18,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 14:53:18,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 14:53:18,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 14:53:18,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 14:53:18,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 14:53:18,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 14:53:18,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 14:53:18,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 14:53:18,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 14:53:18,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:53:18,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:53:18,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:53:18,912 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 14:53:18,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:53:18,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:53:18,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:53:18,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:53:18,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:53:18,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:53:18,940 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:53:18,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:53:18,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:53:18,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:53:18,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:53:18,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:53:18,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:53:18,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:53:18,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:53:18,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:53:18,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:53:18,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:53:18,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:53:18,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:53:18,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:53:18,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:53:18,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:53:18,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:53:18,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:53:18,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:53:18,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:53:18,944 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:53:18,944 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:53:18,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:53:18,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:53:18,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:53:18,945 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:53:18,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:53:19,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:53:19,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:53:19,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:53:19,173 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:53:19,173 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:53:19,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound10.c [2022-01-10 14:53:19,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcf129d3/5ae5f653497b475db0366fd3cde1fa73/FLAG8689a59a0 [2022-01-10 14:53:19,615 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:53:19,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound10.c [2022-01-10 14:53:19,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcf129d3/5ae5f653497b475db0366fd3cde1fa73/FLAG8689a59a0 [2022-01-10 14:53:19,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcf129d3/5ae5f653497b475db0366fd3cde1fa73 [2022-01-10 14:53:19,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:53:19,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:53:19,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:53:19,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:53:19,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:53:19,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f82e665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19, skipping insertion in model container [2022-01-10 14:53:19,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:53:19,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:53:19,803 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/freire2_unwindbound10.c[709,722] [2022-01-10 14:53:19,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:53:19,825 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:53:19,835 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/freire2_unwindbound10.c[709,722] [2022-01-10 14:53:19,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:53:19,849 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:53:19,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19 WrapperNode [2022-01-10 14:53:19,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:53:19,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:53:19,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:53:19,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:53:19,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,873 INFO L137 Inliner]: procedures = 15, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72 [2022-01-10 14:53:19,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:53:19,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:53:19,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:53:19,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:53:19,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:53:19,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:53:19,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:53:19,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:53:19,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (1/1) ... [2022-01-10 14:53:19,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:53:19,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:53:19,916 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 14:53:19,940 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 14:53:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:53:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:53:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:53:19,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:53:20,003 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:53:20,005 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:53:20,213 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:53:20,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:53:20,217 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 14:53:20,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:53:20 BoogieIcfgContainer [2022-01-10 14:53:20,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:53:20,219 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:53:20,219 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:53:20,220 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:53:20,222 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:53:20" (1/1) ... [2022-01-10 14:53:20,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:53:20 BasicIcfg [2022-01-10 14:53:20,306 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:53:20,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:53:20,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:53:20,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:53:20,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:53:19" (1/4) ... [2022-01-10 14:53:20,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509a6a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:53:20, skipping insertion in model container [2022-01-10 14:53:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:53:19" (2/4) ... [2022-01-10 14:53:20,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509a6a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:53:20, skipping insertion in model container [2022-01-10 14:53:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:53:20" (3/4) ... [2022-01-10 14:53:20,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509a6a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:53:20, skipping insertion in model container [2022-01-10 14:53:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:53:20" (4/4) ... [2022-01-10 14:53:20,311 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_unwindbound10.cTransformedIcfg [2022-01-10 14:53:20,314 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:53:20,314 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 14:53:20,344 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:53:20,350 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 14:53:20,350 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 14:53:20,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 32 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 14:53:20,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 14:53:20,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:53:20,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 14:53:20,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 14:53:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:53:20,370 INFO L85 PathProgramCache]: Analyzing trace with hash -714381944, now seen corresponding path program 1 times [2022-01-10 14:53:20,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:53:20,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273545705] [2022-01-10 14:53:20,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:53:20,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:53:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:53:20,482 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 14:53:20,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:53:20,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273545705] [2022-01-10 14:53:20,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273545705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:53:20,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:53:20,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:53:20,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342890947] [2022-01-10 14:53:20,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:53:20,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 14:53:20,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:53:20,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 14:53:20,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 14:53:20,513 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 32 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) 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 14:53:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:53:20,532 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2022-01-10 14:53:20,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 14:53:20,534 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 14:53:20,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:53:20,539 INFO L225 Difference]: With dead ends: 64 [2022-01-10 14:53:20,539 INFO L226 Difference]: Without dead ends: 29 [2022-01-10 14:53:20,542 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 14:53:20,544 INFO L933 BasicCegarLoop]: 34 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, 34 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 14:53:20,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:53:20,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-01-10 14:53:20,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-01-10 14:53:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 28 states have internal predecessors, (30), 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 14:53:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-01-10 14:53:20,569 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 6 [2022-01-10 14:53:20,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:53:20,570 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-01-10 14:53:20,570 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 14:53:20,571 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-01-10 14:53:20,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 14:53:20,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:53:20,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 14:53:20,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:53:20,572 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 14:53:20,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:53:20,575 INFO L85 PathProgramCache]: Analyzing trace with hash -714350166, now seen corresponding path program 1 times [2022-01-10 14:53:20,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:53:20,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719198049] [2022-01-10 14:53:20,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:53:20,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:53:20,612 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:53:20,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [974956774] [2022-01-10 14:53:20,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:53:20,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:53:20,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:53:20,615 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 14:53:20,616 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 14:53:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 14:53:20,681 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 14:53:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 14:53:20,704 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 14:53:20,705 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 14:53:20,706 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-10 14:53:20,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-10 14:53:20,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-10 14:53:20,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-10 14:53:20,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-10 14:53:20,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-10 14:53:20,730 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 14:53:20,927 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 14:53:20,930 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 14:53:20,932 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 14:53:20,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:53:20 BasicIcfg [2022-01-10 14:53:20,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 14:53:20,948 INFO L158 Benchmark]: Toolchain (without parser) took 1311.83ms. Allocated memory was 200.3MB in the beginning and 318.8MB in the end (delta: 118.5MB). Free memory was 144.8MB in the beginning and 241.1MB in the end (delta: -96.3MB). Peak memory consumption was 21.6MB. Max. memory is 8.0GB. [2022-01-10 14:53:20,948 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 200.3MB. Free memory is still 161.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 14:53:20,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.00ms. Allocated memory was 200.3MB in the beginning and 318.8MB in the end (delta: 118.5MB). Free memory was 144.6MB in the beginning and 289.9MB in the end (delta: -145.3MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. [2022-01-10 14:53:20,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.92ms. Allocated memory is still 318.8MB. Free memory was 289.9MB in the beginning and 287.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 14:53:20,949 INFO L158 Benchmark]: Boogie Preprocessor took 16.38ms. Allocated memory is still 318.8MB. Free memory was 287.8MB in the beginning and 286.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 14:53:20,949 INFO L158 Benchmark]: RCFGBuilder took 327.67ms. Allocated memory is still 318.8MB. Free memory was 286.7MB in the beginning and 274.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 14:53:20,949 INFO L158 Benchmark]: IcfgTransformer took 86.91ms. Allocated memory is still 318.8MB. Free memory was 274.7MB in the beginning and 271.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-10 14:53:20,950 INFO L158 Benchmark]: TraceAbstraction took 640.47ms. Allocated memory is still 318.8MB. Free memory was 270.5MB in the beginning and 241.1MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-01-10 14:53:20,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 200.3MB. Free memory is still 161.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 213.00ms. Allocated memory was 200.3MB in the beginning and 318.8MB in the end (delta: 118.5MB). Free memory was 144.6MB in the beginning and 289.9MB in the end (delta: -145.3MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.92ms. Allocated memory is still 318.8MB. Free memory was 289.9MB in the beginning and 287.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.38ms. Allocated memory is still 318.8MB. Free memory was 287.8MB in the beginning and 286.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 327.67ms. Allocated memory is still 318.8MB. Free memory was 286.7MB in the beginning and 274.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 86.91ms. Allocated memory is still 318.8MB. Free memory was 274.7MB in the beginning and 271.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * TraceAbstraction took 640.47ms. Allocated memory is still 318.8MB. Free memory was 270.5MB in the beginning and 241.1MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of floatingLiteral_3.25_DOUBLE at line 30, overapproximation of fp.to_sbv at line 34. Possible FailurePath: [L24] int counter = 0; VAL [counter=0] [L26] int r; [L27] double a, x, s; [L28] a = __VERIFIER_nondet_double() [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [counter=0, r=1] [L33] EXPR counter++ VAL [counter=1, counter++=0, r=1] [L33] COND TRUE counter++<10 [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, counter=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-10 14:53:20,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...