/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:41:38,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:41:38,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:41:38,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 02:41:38,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 02:41:38,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 02:41:38,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 02:41:38,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 02:41:38,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 02:41:38,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 02:41:38,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 02:41:38,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 02:41:38,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:41:38,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:41:38,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:41:38,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:41:38,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:41:38,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:41:38,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:41:38,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:41:38,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:41:38,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:41:38,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:41:38,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:41:38,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 02:41:38,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 02:41:38,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 02:41:38,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 02:41:38,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 02:41:38,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 02:41:38,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:41:38,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:41:38,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:41:38,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:41:38,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:41:38,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:41:38,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:41:38,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:41:38,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:41:38,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:41:38,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:41:38,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 02:41:38,985 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:41:38,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:41:38,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:41:38,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:41:38,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:41:38,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:41:38,987 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:41:38,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:41:38,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:41:38,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:41:38,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:41:38,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:41:38,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:41:38,988 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:41:38,988 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:41:38,988 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:41:38,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:41:38,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:41:38,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:41:38,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:41:38,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:41:38,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:41:38,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:41:38,990 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:41:38,990 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:41:39,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:41:39,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:41:39,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:41:39,168 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:41:39,168 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:41:39,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound20.c [2022-01-11 02:41:39,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d87d48347/0947227f0eb349ef8816b370a7fd68d2/FLAG03cfae8e6 [2022-01-11 02:41:39,524 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:41:39,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound20.c [2022-01-11 02:41:39,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d87d48347/0947227f0eb349ef8816b370a7fd68d2/FLAG03cfae8e6 [2022-01-11 02:41:39,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d87d48347/0947227f0eb349ef8816b370a7fd68d2 [2022-01-11 02:41:39,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:41:39,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:41:39,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:41:39,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:41:39,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:41:39,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71abb6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39, skipping insertion in model container [2022-01-11 02:41:39,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:41:39,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:41:39,710 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/lcm2_valuebound20.c[537,550] [2022-01-11 02:41:39,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:41:39,745 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:41:39,754 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/lcm2_valuebound20.c[537,550] [2022-01-11 02:41:39,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:41:39,767 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:41:39,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39 WrapperNode [2022-01-11 02:41:39,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:41:39,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:41:39,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:41:39,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:41:39,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,795 INFO L137 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 80 [2022-01-11 02:41:39,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:41:39,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:41:39,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:41:39,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:41:39,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:41:39,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:41:39,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:41:39,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:41:39,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (1/1) ... [2022-01-11 02:41:39,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:41:39,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:41:39,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 02:41:39,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 02:41:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:41:39,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:41:39,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:41:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:41:39,942 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:41:39,943 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:41:40,168 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:41:40,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:41:40,171 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 02:41:40,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:41:40 BoogieIcfgContainer [2022-01-11 02:41:40,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:41:40,173 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:41:40,173 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:41:40,174 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:41:40,176 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:41:40" (1/1) ... [2022-01-11 02:41:40,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:41:40 BasicIcfg [2022-01-11 02:41:40,246 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:41:40,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:41:40,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:41:40,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:41:40,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:41:39" (1/4) ... [2022-01-11 02:41:40,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c767193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:41:40, skipping insertion in model container [2022-01-11 02:41:40,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:41:39" (2/4) ... [2022-01-11 02:41:40,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c767193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:41:40, skipping insertion in model container [2022-01-11 02:41:40,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:41:40" (3/4) ... [2022-01-11 02:41:40,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c767193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:41:40, skipping insertion in model container [2022-01-11 02:41:40,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:41:40" (4/4) ... [2022-01-11 02:41:40,254 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound20.cTransformedIcfg [2022-01-11 02:41:40,257 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:41:40,257 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 02:41:40,291 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:41:40,296 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 02:41:40,296 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 02:41:40,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:41:40,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 02:41:40,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:41:40,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:41:40,308 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:41:40,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:41:40,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1717401675, now seen corresponding path program 1 times [2022-01-11 02:41:40,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:41:40,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254286351] [2022-01-11 02:41:40,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:41:40,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:41:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:41:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:41:40,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:41:40,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254286351] [2022-01-11 02:41:40,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254286351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:41:40,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:41:40,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:41:40,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702049858] [2022-01-11 02:41:40,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:41:40,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:41:40,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:41:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:41:40,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:41:40,475 INFO L87 Difference]: Start difference. First operand has 29 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 28 states have internal predecessors, (40), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:41:40,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:41:40,484 INFO L93 Difference]: Finished difference Result 55 states and 76 transitions. [2022-01-11 02:41:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:41:40,485 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-01-11 02:41:40,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:41:40,489 INFO L225 Difference]: With dead ends: 55 [2022-01-11 02:41:40,490 INFO L226 Difference]: Without dead ends: 25 [2022-01-11 02:41:40,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:41:40,496 INFO L933 BasicCegarLoop]: 30 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, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:41:40,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:41:40,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-11 02:41:40,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-01-11 02:41:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:41:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-01-11 02:41:40,518 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 17 [2022-01-11 02:41:40,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:41:40,518 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-01-11 02:41:40,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:41:40,518 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-01-11 02:41:40,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 02:41:40,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:41:40,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:41:40,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:41:40,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:41:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:41:40,520 INFO L85 PathProgramCache]: Analyzing trace with hash 214648336, now seen corresponding path program 1 times [2022-01-11 02:41:40,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:41:40,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097493815] [2022-01-11 02:41:40,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:41:40,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:41:40,568 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:41:40,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044204023] [2022-01-11 02:41:40,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:41:40,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:41:40,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:41:40,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:41:40,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 02:41:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:41:40,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 27 conjunts are in the unsatisfiable core [2022-01-11 02:41:40,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:41:41,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:41:41,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:41:41,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:41:41,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097493815] [2022-01-11 02:41:41,131 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:41:41,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044204023] [2022-01-11 02:41:41,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044204023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:41:41,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:41:41,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-11 02:41:41,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761757287] [2022-01-11 02:41:41,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:41:41,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-11 02:41:41,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:41:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-11 02:41:41,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-01-11 02:41:41,133 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:41:41,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:41:41,484 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2022-01-11 02:41:41,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-11 02:41:41,484 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 17 [2022-01-11 02:41:41,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:41:41,485 INFO L225 Difference]: With dead ends: 36 [2022-01-11 02:41:41,486 INFO L226 Difference]: Without dead ends: 30 [2022-01-11 02:41:41,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2022-01-11 02:41:41,487 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 115 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 02:41:41,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 21 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 02:41:41,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-01-11 02:41:41,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-01-11 02:41:41,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1111111111111112) 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) [2022-01-11 02:41:41,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-01-11 02:41:41,491 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2022-01-11 02:41:41,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:41:41,491 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-01-11 02:41:41,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:41:41,491 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-01-11 02:41:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-11 02:41:41,492 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:41:41,492 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:41:41,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-11 02:41:41,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:41:41,704 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:41:41,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:41:41,704 INFO L85 PathProgramCache]: Analyzing trace with hash 138745669, now seen corresponding path program 1 times [2022-01-11 02:41:41,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:41:41,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19160469] [2022-01-11 02:41:41,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:41:41,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:41:41,729 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:41:41,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821642135] [2022-01-11 02:41:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:41:41,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:41:41,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:41:41,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:41:41,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 02:41:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:41:43,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 41 conjunts are in the unsatisfiable core [2022-01-11 02:41:43,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:41:43,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:41:43,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:41:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:41:45,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:41:45,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19160469] [2022-01-11 02:41:45,687 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:41:45,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821642135] [2022-01-11 02:41:45,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821642135] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:41:45,688 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:41:45,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 14 [2022-01-11 02:41:45,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883150384] [2022-01-11 02:41:45,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:41:45,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-11 02:41:45,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:41:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-11 02:41:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-01-11 02:41:45,689 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 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) [2022-01-11 02:41:48,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:41:52,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:41:54,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:41:57,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:41:59,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:42:01,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:42:01,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:42:01,287 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-01-11 02:42:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-11 02:42:01,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-11 02:42:01,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:42:01,288 INFO L225 Difference]: With dead ends: 52 [2022-01-11 02:42:01,288 INFO L226 Difference]: Without dead ends: 44 [2022-01-11 02:42:01,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2022-01-11 02:42:01,289 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 104 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 69 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-01-11 02:42:01,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 33 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 103 Invalid, 6 Unknown, 0 Unchecked, 13.3s Time] [2022-01-11 02:42:01,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-01-11 02:42:01,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2022-01-11 02:42:01,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.135135135135135) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:42:01,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-01-11 02:42:01,294 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 22 [2022-01-11 02:42:01,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:42:01,294 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-01-11 02:42:01,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 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) [2022-01-11 02:42:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-01-11 02:42:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-11 02:42:01,295 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:42:01,295 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:42:01,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-11 02:42:01,507 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 [2022-01-11 02:42:01,510 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:42:01,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:42:01,510 INFO L85 PathProgramCache]: Analyzing trace with hash 138775460, now seen corresponding path program 1 times [2022-01-11 02:42:01,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:42:01,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249649040] [2022-01-11 02:42:01,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:42:01,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:42:01,531 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:42:01,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839399469] [2022-01-11 02:42:01,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:42:01,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:42:01,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:42:01,536 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:42:01,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 02:42:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:42:03,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-11 02:42:03,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:42:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:42:03,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:42:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:42:06,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:42:06,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249649040] [2022-01-11 02:42:06,315 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:42:06,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839399469] [2022-01-11 02:42:06,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839399469] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:42:06,315 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:42:06,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 15 [2022-01-11 02:42:06,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053071688] [2022-01-11 02:42:06,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:42:06,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-11 02:42:06,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:42:06,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-11 02:42:06,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-01-11 02:42:06,316 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:42:09,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:42:12,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:42:14,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:42:16,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:42:18,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:42:23,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:42:25,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:42:25,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:42:25,403 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2022-01-11 02:42:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-11 02:42:25,404 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-11 02:42:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:42:25,404 INFO L225 Difference]: With dead ends: 51 [2022-01-11 02:42:25,404 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 02:42:25,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=232, Invalid=470, Unknown=0, NotChecked=0, Total=702 [2022-01-11 02:42:25,406 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 88 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 66 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-01-11 02:42:25,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 25 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 101 Invalid, 6 Unknown, 0 Unchecked, 14.8s Time] [2022-01-11 02:42:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 02:42:25,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 02:42:25,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:42:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 02:42:25,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-01-11 02:42:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:42:25,407 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 02:42:25,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:42:25,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 02:42:25,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 02:42:25,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-11 02:42:25,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-11 02:42:25,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-11 02:42:25,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:42:25,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 02:42:29,046 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 02:42:29,046 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 02:42:29,046 INFO L858 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-01-11 02:42:29,046 INFO L858 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2022-01-11 02:42:29,046 INFO L858 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2022-01-11 02:42:29,046 INFO L858 garLoopResultBuilder]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2022-01-11 02:42:29,046 INFO L858 garLoopResultBuilder]: For program point L9-4(line 9) no Hoare annotation was computed. [2022-01-11 02:42:29,046 INFO L858 garLoopResultBuilder]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L9-6(line 9) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L8-3(lines 8 10) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L9-8(line 9) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L8-4(lines 8 10) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L9-10(line 9) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L8-5(lines 8 10) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L854 garLoopResultBuilder]: At program point L43-2(lines 37 50) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|)) (.cse1 (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) (.cse2 (<= |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int| 20)) (.cse3 (<= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 20)) (.cse4 (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1)) (.cse5 (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|))) (or (and .cse0 (= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) .cse2 .cse3 .cse4 .cse5 (= (mod (+ (mod (* |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296) (mod (* |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 4294967296)) 4294967296) (mod (* (mod (* 2 |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) 4294967296) |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) 4294967296))))) [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L37-2(lines 37 50) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2022-01-11 02:42:29,047 INFO L858 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2022-01-11 02:42:29,048 INFO L854 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int| 20) (<= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 20) (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|) (= (mod (+ (mod (* |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296) (mod (* |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 4294967296)) 4294967296) (mod (* (mod (* 2 |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) 4294967296) |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) 4294967296))) [2022-01-11 02:42:29,048 INFO L858 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2022-01-11 02:42:29,048 INFO L861 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: true [2022-01-11 02:42:29,048 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-11 02:42:29,048 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2022-01-11 02:42:29,048 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-11 02:42:29,048 INFO L861 garLoopResultBuilder]: At program point L56(lines 19 57) the Hoare annotation is: true [2022-01-11 02:42:29,048 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 49) no Hoare annotation was computed. [2022-01-11 02:42:29,048 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 02:42:29,048 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 02:42:29,050 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-11 02:42:29,051 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 02:42:29,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:42:29 BasicIcfg [2022-01-11 02:42:29,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 02:42:29,070 INFO L158 Benchmark]: Toolchain (without parser) took 49512.31ms. Allocated memory was 221.2MB in the beginning and 266.3MB in the end (delta: 45.1MB). Free memory was 168.0MB in the beginning and 110.4MB in the end (delta: 57.5MB). Peak memory consumption was 103.3MB. Max. memory is 8.0GB. [2022-01-11 02:42:29,071 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 221.2MB. Free memory is still 184.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 02:42:29,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.53ms. Allocated memory is still 221.2MB. Free memory was 167.8MB in the beginning and 194.2MB in the end (delta: -26.5MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2022-01-11 02:42:29,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.37ms. Allocated memory is still 221.2MB. Free memory was 194.2MB in the beginning and 192.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 02:42:29,071 INFO L158 Benchmark]: Boogie Preprocessor took 27.49ms. Allocated memory is still 221.2MB. Free memory was 192.8MB in the beginning and 191.6MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 02:42:29,071 INFO L158 Benchmark]: RCFGBuilder took 348.63ms. Allocated memory is still 221.2MB. Free memory was 191.1MB in the beginning and 180.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-11 02:42:29,071 INFO L158 Benchmark]: IcfgTransformer took 73.45ms. Allocated memory is still 221.2MB. Free memory was 180.6MB in the beginning and 175.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-01-11 02:42:29,072 INFO L158 Benchmark]: TraceAbstraction took 48820.07ms. Allocated memory was 221.2MB in the beginning and 266.3MB in the end (delta: 45.1MB). Free memory was 175.0MB in the beginning and 110.4MB in the end (delta: 64.5MB). Peak memory consumption was 111.0MB. Max. memory is 8.0GB. [2022-01-11 02:42:29,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 221.2MB. Free memory is still 184.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 208.53ms. Allocated memory is still 221.2MB. Free memory was 167.8MB in the beginning and 194.2MB in the end (delta: -26.5MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.37ms. Allocated memory is still 221.2MB. Free memory was 194.2MB in the beginning and 192.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.49ms. Allocated memory is still 221.2MB. Free memory was 192.8MB in the beginning and 191.6MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 348.63ms. Allocated memory is still 221.2MB. Free memory was 191.1MB in the beginning and 180.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 73.45ms. Allocated memory is still 221.2MB. Free memory was 180.6MB in the beginning and 175.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * TraceAbstraction took 48820.07ms. Allocated memory was 221.2MB in the beginning and 266.3MB in the end (delta: 45.1MB). Free memory was 175.0MB in the beginning and 110.4MB in the end (delta: 64.5MB). Peak memory consumption was 111.0MB. 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 48.8s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 12 mSolverCounterUnknown, 307 SdHoareTripleChecker+Valid, 28.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 307 mSDsluCounter, 109 SdHoareTripleChecker+Invalid, 28.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 184 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 269 IncrementalHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 184 mSolverCounterUnsat, 54 mSDtfsCounter, 269 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=3, InterpolantAutomatonStates: 46, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 17 NumberOfFragments, 124 HoareAnnotationTreeSize, 4 FomulaSimplifications, 57 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 750 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 1264 SizeOfPredicates, 41 NumberOfNonLiveVariables, 632 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2/8 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((~bvule32(1bv32, cond) && ~bvule32(b, 20bv32)) && ~bvule32(1bv32, a)) && ~bvule32(0bv32, cond)) && ~bvadd16(~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(x), ~zero_extendFrom32To64(u))[31:0]), ~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(v), ~zero_extendFrom32To64(y))[31:0]))[31:0] == ~bvmul32(~zero_extendFrom32To64(~bvmul32(2bv33, ~zero_extendFrom32To33(a))[31:0]), ~zero_extendFrom32To64(b))[31:0]) && ~bvule32(1bv32, b)) && ~bvule32(a, 20bv32)) && ~bvule32(cond, 1bv32) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((((((~bvule32(1bv32, cond) && ~bvule32(b, 20bv32)) && ~bvule32(1bv32, a)) && ~bvule32(0bv32, cond)) && ~bvadd16(~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(x), ~zero_extendFrom32To64(u))[31:0]), ~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(v), ~zero_extendFrom32To64(y))[31:0]))[31:0] == ~bvmul32(~zero_extendFrom32To64(~bvmul32(2bv33, ~zero_extendFrom32To33(a))[31:0]), ~zero_extendFrom32To64(b))[31:0]) && ~bvule32(1bv32, b)) && ~bvule32(a, 20bv32)) && ~bvule32(cond, 1bv32)) || (((((((((x == a && v == a) && ~bvule32(b, 20bv32)) && u == b) && ~bvule32(1bv32, a)) && y == b) && ~bvule32(0bv32, cond)) && ~bvule32(1bv32, b)) && ~bvule32(a, 20bv32)) && ~bvule32(cond, 1bv32)) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-11 02:42:29,105 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...