/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_NONE.epf -i ../../../trunk/examples/svcomp/array-fpi/sqm-iff.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 21:39:59,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 21:39:59,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 21:39:59,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 21:39:59,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 21:39:59,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 21:39:59,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 21:39:59,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 21:39:59,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 21:39:59,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 21:39:59,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 21:39:59,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 21:39:59,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 21:39:59,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 21:39:59,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 21:39:59,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 21:39:59,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 21:39:59,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 21:39:59,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 21:39:59,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 21:39:59,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 21:39:59,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 21:39:59,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 21:39:59,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 21:39:59,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 21:39:59,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 21:39:59,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 21:39:59,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 21:39:59,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 21:39:59,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 21:39:59,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 21:39:59,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 21:39:59,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 21:39:59,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 21:39:59,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 21:39:59,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 21:39:59,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 21:39:59,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 21:39:59,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 21:39:59,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 21:39:59,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 21:39:59,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 21:39:59,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 21:39:59,993 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 21:39:59,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 21:39:59,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 21:39:59,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 21:39:59,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 21:39:59,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 21:39:59,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 21:39:59,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 21:39:59,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 21:39:59,995 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 21:39:59,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 21:39:59,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 21:39:59,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 21:39:59,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 21:39:59,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 21:39:59,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:39:59,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 21:39:59,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 21:39:59,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 21:39:59,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 21:39:59,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 21:39:59,997 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 21:39:59,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 21:39:59,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 21:39:59,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 21:39:59,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 21:39:59,998 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 21:39:59,998 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 21:40:00,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 21:40:00,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 21:40:00,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 21:40:00,199 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 21:40:00,200 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 21:40:00,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sqm-iff.c [2022-01-10 21:40:00,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b3ce449/469b1096d5f04b0eb2e8b6f2f99b06da/FLAGbd0fdd46f [2022-01-10 21:40:00,583 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 21:40:00,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sqm-iff.c [2022-01-10 21:40:00,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b3ce449/469b1096d5f04b0eb2e8b6f2f99b06da/FLAGbd0fdd46f [2022-01-10 21:40:00,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b3ce449/469b1096d5f04b0eb2e8b6f2f99b06da [2022-01-10 21:40:00,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 21:40:00,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 21:40:00,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 21:40:00,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 21:40:00,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 21:40:00,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be526d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00, skipping insertion in model container [2022-01-10 21:40:00,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 21:40:00,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 21:40:00,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sqm-iff.c[590,603] [2022-01-10 21:40:00,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:40:00,851 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 21:40:00,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sqm-iff.c[590,603] [2022-01-10 21:40:00,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:40:00,892 INFO L208 MainTranslator]: Completed translation [2022-01-10 21:40:00,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00 WrapperNode [2022-01-10 21:40:00,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 21:40:00,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 21:40:00,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 21:40:00,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 21:40:00,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,932 INFO L137 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2022-01-10 21:40:00,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 21:40:00,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 21:40:00,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 21:40:00,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 21:40:00,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 21:40:00,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 21:40:00,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 21:40:00,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 21:40:00,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (1/1) ... [2022-01-10 21:40:00,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:40:00,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:40:00,993 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 21:40:01,021 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 21:40:01,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 21:40:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 21:40:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 21:40:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 21:40:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 21:40:01,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 21:40:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 21:40:01,083 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 21:40:01,084 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 21:40:01,236 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 21:40:01,240 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 21:40:01,240 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 21:40:01,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:40:01 BoogieIcfgContainer [2022-01-10 21:40:01,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 21:40:01,242 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 21:40:01,242 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 21:40:01,243 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 21:40:01,245 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:40:01" (1/1) ... [2022-01-10 21:40:01,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:40:01 BasicIcfg [2022-01-10 21:40:01,329 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 21:40:01,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 21:40:01,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 21:40:01,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 21:40:01,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:40:00" (1/4) ... [2022-01-10 21:40:01,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e565ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:40:01, skipping insertion in model container [2022-01-10 21:40:01,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:40:00" (2/4) ... [2022-01-10 21:40:01,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e565ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:40:01, skipping insertion in model container [2022-01-10 21:40:01,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:40:01" (3/4) ... [2022-01-10 21:40:01,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e565ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:40:01, skipping insertion in model container [2022-01-10 21:40:01,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:40:01" (4/4) ... [2022-01-10 21:40:01,333 INFO L111 eAbstractionObserver]: Analyzing ICFG sqm-iff.cTransformedIcfg [2022-01-10 21:40:01,336 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 21:40:01,336 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 21:40:01,362 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 21:40:01,366 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 21:40:01,366 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 21:40:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 21:40:01,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 21:40:01,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:40:01,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:40:01,378 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:40:01,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:40:01,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1663889424, now seen corresponding path program 1 times [2022-01-10 21:40:01,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:40:01,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909761931] [2022-01-10 21:40:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:40:01,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:40:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:40:01,575 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 21:40:01,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:40:01,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909761931] [2022-01-10 21:40:01,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909761931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:40:01,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:40:01,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 21:40:01,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165614011] [2022-01-10 21:40:01,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:40:01,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 21:40:01,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:40:01,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 21:40:01,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 21:40:01,611 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 21:40:01,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:40:01,625 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2022-01-10 21:40:01,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 21:40:01,628 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-01-10 21:40:01,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:40:01,636 INFO L225 Difference]: With dead ends: 42 [2022-01-10 21:40:01,636 INFO L226 Difference]: Without dead ends: 19 [2022-01-10 21:40:01,638 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 21:40:01,642 INFO L933 BasicCegarLoop]: 28 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, 28 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 21:40:01,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:40:01,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-01-10 21:40:01,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-01-10 21:40:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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 21:40:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-01-10 21:40:01,671 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2022-01-10 21:40:01,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:40:01,672 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-01-10 21:40:01,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 21:40:01,673 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-01-10 21:40:01,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 21:40:01,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:40:01,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:40:01,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 21:40:01,674 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:40:01,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:40:01,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1711127090, now seen corresponding path program 1 times [2022-01-10 21:40:01,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:40:01,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405624726] [2022-01-10 21:40:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:40:01,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:40:01,738 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 21:40:01,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647819250] [2022-01-10 21:40:01,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:40:01,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 21:40:01,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:40:01,768 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 21:40:01,770 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 21:40:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:40:01,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 21:40:01,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 21:40:02,070 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 21:40:02,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 21:40:02,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:40:02,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405624726] [2022-01-10 21:40:02,071 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 21:40:02,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647819250] [2022-01-10 21:40:02,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647819250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:40:02,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:40:02,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:40:02,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924024563] [2022-01-10 21:40:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:40:02,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:40:02,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:40:02,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:40:02,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:40:02,078 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 21:40:04,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 21:40:04,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:40:04,442 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2022-01-10 21:40:04,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:40:04,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-01-10 21:40:04,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:40:04,445 INFO L225 Difference]: With dead ends: 49 [2022-01-10 21:40:04,445 INFO L226 Difference]: Without dead ends: 31 [2022-01-10 21:40:04,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:40:04,446 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 21:40:04,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 34 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 21:40:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-01-10 21:40:04,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2022-01-10 21:40:04,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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 21:40:04,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-01-10 21:40:04,450 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2022-01-10 21:40:04,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:40:04,451 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-01-10 21:40:04,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 21:40:04,451 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-01-10 21:40:04,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 21:40:04,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:40:04,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:40:04,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 21:40:04,668 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 21:40:04,668 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:40:04,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:40:04,669 INFO L85 PathProgramCache]: Analyzing trace with hash 875960336, now seen corresponding path program 1 times [2022-01-10 21:40:04,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:40:04,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000399569] [2022-01-10 21:40:04,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:40:04,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:40:04,710 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 21:40:04,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1649792905] [2022-01-10 21:40:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:40:04,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 21:40:04,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:40:04,728 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 21:40:04,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 21:40:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 21:40:04,876 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 21:40:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 21:40:04,945 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 21:40:04,946 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 21:40:04,947 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 21:40:04,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 21:40:05,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-10 21:40:05,152 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-10 21:40:05,154 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 21:40:05,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:40:05 BasicIcfg [2022-01-10 21:40:05,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 21:40:05,178 INFO L158 Benchmark]: Toolchain (without parser) took 4575.53ms. Allocated memory was 201.3MB in the beginning and 245.4MB in the end (delta: 44.0MB). Free memory was 149.8MB in the beginning and 190.8MB in the end (delta: -41.0MB). Peak memory consumption was 3.8MB. Max. memory is 8.0GB. [2022-01-10 21:40:05,178 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory was 166.6MB in the beginning and 166.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 21:40:05,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.24ms. Allocated memory is still 201.3MB. Free memory was 149.7MB in the beginning and 175.4MB in the end (delta: -25.7MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2022-01-10 21:40:05,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.52ms. Allocated memory is still 201.3MB. Free memory was 175.4MB in the beginning and 173.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 21:40:05,179 INFO L158 Benchmark]: Boogie Preprocessor took 35.62ms. Allocated memory is still 201.3MB. Free memory was 173.9MB in the beginning and 172.7MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 21:40:05,179 INFO L158 Benchmark]: RCFGBuilder took 272.29ms. Allocated memory is still 201.3MB. Free memory was 172.2MB in the beginning and 160.2MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 21:40:05,179 INFO L158 Benchmark]: IcfgTransformer took 86.72ms. Allocated memory is still 201.3MB. Free memory was 160.2MB in the beginning and 153.4MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-10 21:40:05,180 INFO L158 Benchmark]: TraceAbstraction took 3847.87ms. Allocated memory was 201.3MB in the beginning and 245.4MB in the end (delta: 44.0MB). Free memory was 152.9MB in the beginning and 190.8MB in the end (delta: -37.9MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. [2022-01-10 21:40:05,183 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 201.3MB. Free memory was 166.6MB in the beginning and 166.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 289.24ms. Allocated memory is still 201.3MB. Free memory was 149.7MB in the beginning and 175.4MB in the end (delta: -25.7MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.52ms. Allocated memory is still 201.3MB. Free memory was 175.4MB in the beginning and 173.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.62ms. Allocated memory is still 201.3MB. Free memory was 173.9MB in the beginning and 172.7MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 272.29ms. Allocated memory is still 201.3MB. Free memory was 172.2MB in the beginning and 160.2MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 86.72ms. Allocated memory is still 201.3MB. Free memory was 160.2MB in the beginning and 153.4MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 3847.87ms. Allocated memory was 201.3MB in the beginning and 245.4MB in the end (delta: 44.0MB). Free memory was 152.9MB in the beginning and 190.8MB in the end (delta: -37.9MB). Peak memory consumption was 7.6MB. 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [a={-2:0}, b={-3:0}, i=0, N=1] [L31] COND TRUE i