/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/nla-digbench-scaling/geo1-ll_unwindbound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:43:39,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:43:39,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:43:39,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:43:39,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:43:39,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:43:39,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:43:39,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:43:39,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:43:39,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:43:39,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:43:39,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:43:39,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:43:39,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:43:39,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:43:39,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:43:39,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:43:39,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:43:39,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:43:39,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:43:39,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:43:39,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:43:39,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:43:39,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:43:39,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:43:39,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:43:39,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:43:39,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:43:39,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:43:39,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 20:43:39,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:43:39,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:43:39,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:43:39,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:43:39,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:43:39,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:43:39,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:43:39,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:43:39,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:43:39,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:43:39,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:43:39,208 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 20:43:39,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:43:39,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:43:39,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:43:39,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:43:39,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:43:39,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:43:39,224 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:43:39,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:43:39,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:43:39,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:43:39,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:43:39,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:43:39,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:43:39,225 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:43:39,225 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:43:39,225 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:43:39,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:43:39,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:43:39,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:43:39,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:43:39,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:43:39,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:43:39,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:43:39,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:43:39,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:43:39,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:43:39,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:43:39,226 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:43:39,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:43:39,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:43:39,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:43:39,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:43:39,227 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:43:39,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:43:39,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:43:39,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:43:39,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:43:39,455 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:43:39,456 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:43:39,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound1.c [2022-01-10 20:43:39,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf380b849/64dee21c0461490d80c95ce7bb7c9874/FLAG584115972 [2022-01-10 20:43:39,846 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:43:39,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound1.c [2022-01-10 20:43:39,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf380b849/64dee21c0461490d80c95ce7bb7c9874/FLAG584115972 [2022-01-10 20:43:39,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf380b849/64dee21c0461490d80c95ce7bb7c9874 [2022-01-10 20:43:39,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:43:39,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:43:39,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:43:39,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:43:39,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:43:39,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:43:39" (1/1) ... [2022-01-10 20:43:39,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca4c8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:39, skipping insertion in model container [2022-01-10 20:43:39,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:43:39" (1/1) ... [2022-01-10 20:43:39,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:43:39,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:43:40,073 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/geo1-ll_unwindbound1.c[546,559] [2022-01-10 20:43:40,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:43:40,095 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:43:40,105 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/geo1-ll_unwindbound1.c[546,559] [2022-01-10 20:43:40,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:43:40,128 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:43:40,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40 WrapperNode [2022-01-10 20:43:40,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:43:40,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:43:40,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:43:40,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:43:40,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,155 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 59 [2022-01-10 20:43:40,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:43:40,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:43:40,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:43:40,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:43:40,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:43:40,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:43:40,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:43:40,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:43:40,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:43:40,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:43:40,231 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 20:43:40,248 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 20:43:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:43:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:43:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:43:40,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:43:40,309 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:43:40,310 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:43:40,604 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:43:40,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:43:40,608 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:43:40,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:43:40 BoogieIcfgContainer [2022-01-10 20:43:40,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:43:40,610 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:43:40,610 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:43:40,619 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:43:40,621 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:43:40" (1/1) ... [2022-01-10 20:43:40,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:43:40 BasicIcfg [2022-01-10 20:43:40,700 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:43:40,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:43:40,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:43:40,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:43:40,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:43:39" (1/4) ... [2022-01-10 20:43:40,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6e6989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:43:40, skipping insertion in model container [2022-01-10 20:43:40,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:40" (2/4) ... [2022-01-10 20:43:40,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6e6989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:43:40, skipping insertion in model container [2022-01-10 20:43:40,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:43:40" (3/4) ... [2022-01-10 20:43:40,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6e6989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:43:40, skipping insertion in model container [2022-01-10 20:43:40,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:43:40" (4/4) ... [2022-01-10 20:43:40,705 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound1.cTransformedIcfg [2022-01-10 20:43:40,709 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:43:40,709 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 20:43:40,738 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:43:40,743 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 20:43:40,743 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 20:43:40,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 18 states have (on average 1.5) internal successors, (27), 20 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 20:43:40,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 20:43:40,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:43:40,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:43:40,756 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:43:40,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:43:40,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1909041845, now seen corresponding path program 1 times [2022-01-10 20:43:40,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:43:40,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190133852] [2022-01-10 20:43:40,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:43:40,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:43:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:43:40,920 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 20:43:40,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:43:40,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190133852] [2022-01-10 20:43:40,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190133852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:43:40,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:43:40,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:43:40,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921755105] [2022-01-10 20:43:40,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:43:40,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:43:40,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:43:40,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:43:40,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:43:40,949 INFO L87 Difference]: Start difference. First operand has 21 states, 18 states have (on average 1.5) internal successors, (27), 20 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 20:43:40,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:43:40,958 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2022-01-10 20:43:40,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:43:40,960 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-01-10 20:43:40,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:43:40,964 INFO L225 Difference]: With dead ends: 39 [2022-01-10 20:43:40,964 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 20:43:40,966 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 20:43:40,968 INFO L933 BasicCegarLoop]: 22 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, 22 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 20:43:40,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:43:40,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 20:43:40,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-10 20:43:40,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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 20:43:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-01-10 20:43:40,989 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 10 [2022-01-10 20:43:40,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:43:40,989 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-01-10 20:43:40,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 20:43:40,991 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-01-10 20:43:40,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 20:43:40,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:43:40,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:43:40,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:43:40,992 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:43:40,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:43:40,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1880380916, now seen corresponding path program 1 times [2022-01-10 20:43:40,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:43:40,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203890955] [2022-01-10 20:43:40,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:43:40,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:43:41,034 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:43:41,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540072357] [2022-01-10 20:43:41,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:43:41,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:43:41,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:43:41,037 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 20:43:41,060 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 20:43:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:43:41,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-10 20:43:41,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:43:41,463 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 20:43:41,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:43:41,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:43:41,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203890955] [2022-01-10 20:43:41,464 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:43:41,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540072357] [2022-01-10 20:43:41,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540072357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:43:41,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:43:41,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 20:43:41,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370650469] [2022-01-10 20:43:41,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:43:41,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 20:43:41,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:43:41,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 20:43:41,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 20:43:41,467 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 20:43:41,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:43:41,682 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-01-10 20:43:41,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 20:43:41,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-01-10 20:43:41,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:43:41,683 INFO L225 Difference]: With dead ends: 29 [2022-01-10 20:43:41,683 INFO L226 Difference]: Without dead ends: 22 [2022-01-10 20:43:41,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:43:41,685 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 44 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:43:41,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 33 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:43:41,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-01-10 20:43:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-01-10 20:43:41,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 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 20:43:41,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-01-10 20:43:41,689 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2022-01-10 20:43:41,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:43:41,689 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-01-10 20:43:41,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 20:43:41,689 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-01-10 20:43:41,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 20:43:41,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:43:41,690 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:43:41,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 20:43:41,894 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 20:43:41,894 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:43:41,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:43:41,895 INFO L85 PathProgramCache]: Analyzing trace with hash 343243985, now seen corresponding path program 1 times [2022-01-10 20:43:41,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:43:41,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989044190] [2022-01-10 20:43:41,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:43:41,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:43:41,923 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:43:41,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333659557] [2022-01-10 20:43:41,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:43:41,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:43:41,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:43:41,926 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 20:43:41,941 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 20:43:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:43:42,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 20:43:42,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:43:42,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:43:42,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:43:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:43:42,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:43:42,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989044190] [2022-01-10 20:43:42,336 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:43:42,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333659557] [2022-01-10 20:43:42,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333659557] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 20:43:42,337 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 20:43:42,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-01-10 20:43:42,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458844812] [2022-01-10 20:43:42,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 20:43:42,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 20:43:42,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:43:42,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 20:43:42,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-10 20:43:42,338 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 20:43:42,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:43:42,409 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-01-10 20:43:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:43:42,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 15 [2022-01-10 20:43:42,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:43:42,410 INFO L225 Difference]: With dead ends: 28 [2022-01-10 20:43:42,410 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 20:43:42,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:43:42,411 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:43:42,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 39 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:43:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 20:43:42,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-10 20:43:42,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 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 20:43:42,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-01-10 20:43:42,414 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 15 [2022-01-10 20:43:42,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:43:42,414 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-01-10 20:43:42,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 20:43:42,414 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-01-10 20:43:42,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 20:43:42,415 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:43:42,415 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:43:42,433 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 20:43:42,619 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 20:43:42,620 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:43:42,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:43:42,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2050594208, now seen corresponding path program 1 times [2022-01-10 20:43:42,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:43:42,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876719832] [2022-01-10 20:43:42,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:43:42,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:43:42,635 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:43:42,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [601884803] [2022-01-10 20:43:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:43:42,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:43:42,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:43:42,637 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) [2022-01-10 20:43:42,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 20:43:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:43:45,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 39 conjunts are in the unsatisfiable core [2022-01-10 20:43:45,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:43:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:43:46,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:44:09,112 WARN L228 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-10 20:44:18,888 WARN L860 $PredicateComparison]: unable to prove that (or (= (mod (let ((.cse0 (+ (* 18446744069414584320 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int| 2147483648) 2)) |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|))) (+ (mod (* 18446744073709551615 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| .cse0) 18446744073709551616)) 18446744073709551616) (mod (* (let ((.cse1 (mod (+ 4294967295 |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 4294967296))) (+ .cse1 (* 18446744069414584320 (mod (div .cse1 2147483648) 2)))) (mod (+ (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| .cse0) 18446744073709551616) 1) 18446744073709551616)) 18446744073709551616) 1)) 18446744073709551616) 0) (= |c_ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int| 0) (not (let ((.cse2 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~k~0#1Int| 2147483648) 2))) (< (+ (* 2 (mod |c_ULTIMATE.start_ULTIMATE.start_main_~c~0#1Int| 9223372036854775808)) |c_ULTIMATE.start_ULTIMATE.start_main_~k~0#1Int| (* 18446744069414584320 .cse2)) (+ (* 2 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~k~0#1Int| (* .cse2 9223372032559808512)) 9223372036854775808)) |c_ULTIMATE.start_ULTIMATE.start_main_~c~0#1Int|))))) is different from true [2022-01-10 20:44:38,780 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* 18446744069414584320 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int| 2147483648) 2)) |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|))) (let ((.cse2 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| .cse0) 18446744073709551616))) (or (not (< (+ (* 2 (mod |c_ULTIMATE.start_ULTIMATE.start_main_#t~post6#1Int| 2147483648)) 1) (+ (* (mod 1 2147483648) 2) |c_ULTIMATE.start_ULTIMATE.start_main_#t~post6#1Int|))) (= (mod (+ (mod (* 18446744073709551615 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| .cse0) 18446744073709551616)) 18446744073709551616) (mod (* (let ((.cse1 (mod (+ 4294967295 |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 4294967296))) (+ .cse1 (* 18446744069414584320 (mod (div .cse1 2147483648) 2)))) (mod (+ .cse2 1) 18446744073709551616)) 18446744073709551616) 1) 18446744073709551616) 0) (not (let ((.cse3 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~k~0#1Int| 2147483648) 2))) (< (+ (* 2 (mod |c_ULTIMATE.start_ULTIMATE.start_main_~c~0#1Int| 9223372036854775808)) |c_ULTIMATE.start_ULTIMATE.start_main_~k~0#1Int| (* 18446744069414584320 .cse3)) (+ (* 2 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~k~0#1Int| (* .cse3 9223372032559808512)) 9223372036854775808)) |c_ULTIMATE.start_ULTIMATE.start_main_~c~0#1Int|)))) (not (= (mod (+ .cse2 (mod (* 18446744073709551615 |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 18446744073709551616) (mod (* 18446744073709551615 |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616) 1) 18446744073709551616) 0))))) is different from true