/usr/bin/java -ea -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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/egcd3-ll_unwindbound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 23:53:25,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 23:53:25,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 23:53:25,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 23:53:25,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 23:53:25,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 23:53:25,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 23:53:25,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 23:53:25,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 23:53:25,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 23:53:25,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 23:53:25,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 23:53:25,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 23:53:25,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 23:53:25,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 23:53:25,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 23:53:25,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 23:53:25,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 23:53:25,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 23:53:25,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 23:53:25,234 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 23:53:25,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 23:53:25,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 23:53:25,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 23:53:25,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 23:53:25,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-27 23:53:25,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-27 23:53:25,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-27 23:53:25,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-27 23:53:25,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-27 23:53:25,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-27 23:53:25,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 23:53:25,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 23:53:25,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 23:53:25,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-27 23:53:25,274 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 23:53:25,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 23:53:25,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-27 23:53:25,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-27 23:53:25,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-27 23:53:25,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-27 23:53:25,280 INFO L138 SettingsManager]: * Use SBE=true [2022-04-27 23:53:25,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 23:53:25,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 23:53:25,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 23:53:25,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 23:53:25,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 23:53:25,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 23:53:25,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 23:53:25,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 23:53:25,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 23:53:25,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 23:53:25,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 23:53:25,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 23:53:25,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 23:53:25,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 23:53:25,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-27 23:53:25,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-27 23:53:25,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 23:53:25,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-27 23:53:25,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-27 23:53:25,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-27 23:53:25,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-27 23:53:25,284 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 23:53:25,284 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 23:53:25,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 23:53:25,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 23:53:25,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 23:53:25,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 23:53:25,448 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 23:53:25,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/egcd3-ll_unwindbound1.c [2022-04-27 23:53:25,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97bd8351/f2aff83cdeec43ee9412f9f6485fc805/FLAGeb402a6a1 [2022-04-27 23:53:25,822 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 23:53:25,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/egcd3-ll_unwindbound1.c [2022-04-27 23:53:25,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97bd8351/f2aff83cdeec43ee9412f9f6485fc805/FLAGeb402a6a1 [2022-04-27 23:53:26,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97bd8351/f2aff83cdeec43ee9412f9f6485fc805 [2022-04-27 23:53:26,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 23:53:26,267 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 23:53:26,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 23:53:26,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 23:53:26,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 23:53:26,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7ff19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26, skipping insertion in model container [2022-04-27 23:53:26,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 23:53:26,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 23:53:26,451 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/egcd3-ll_unwindbound1.c[490,503] [2022-04-27 23:53:26,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 23:53:26,508 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 23:53:26,515 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/egcd3-ll_unwindbound1.c[490,503] [2022-04-27 23:53:26,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 23:53:26,542 INFO L208 MainTranslator]: Completed translation [2022-04-27 23:53:26,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26 WrapperNode [2022-04-27 23:53:26,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 23:53:26,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 23:53:26,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 23:53:26,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 23:53:26,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 23:53:26,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 23:53:26,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 23:53:26,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 23:53:26,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 23:53:26,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 23:53:26,590 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) [2022-04-27 23:53:26,592 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 [2022-04-27 23:53:26,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 23:53:26,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 23:53:26,616 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 23:53:26,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-27 23:53:26,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 23:53:26,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 23:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 23:53:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 23:53:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 23:53:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 23:53:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 23:53:26,658 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 23:53:26,659 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 23:53:26,873 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 23:53:26,877 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 23:53:26,877 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-27 23:53:26,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 11:53:26 BoogieIcfgContainer [2022-04-27 23:53:26,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 23:53:26,879 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 23:53:26,879 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 23:53:26,880 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 23:53:26,882 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 11:53:26" (1/1) ... [2022-04-27 23:53:26,883 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-27 23:53:26,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 11:53:26 BasicIcfg [2022-04-27 23:53:26,904 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 23:53:26,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 23:53:26,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 23:53:26,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 23:53:26,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 11:53:26" (1/4) ... [2022-04-27 23:53:26,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529bcf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 11:53:26, skipping insertion in model container [2022-04-27 23:53:26,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 11:53:26" (2/4) ... [2022-04-27 23:53:26,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529bcf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 11:53:26, skipping insertion in model container [2022-04-27 23:53:26,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 11:53:26" (3/4) ... [2022-04-27 23:53:26,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529bcf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 11:53:26, skipping insertion in model container [2022-04-27 23:53:26,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 11:53:26" (4/4) ... [2022-04-27 23:53:26,909 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd3-ll_unwindbound1.cqvasr [2022-04-27 23:53:26,917 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-27 23:53:26,917 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 23:53:26,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 23:53:26,950 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2bfba4a4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c1f2849 [2022-04-27 23:53:26,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 23:53:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.48) internal successors, (37), 26 states have internal predecessors, (37), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 23:53:26,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-27 23:53:26,960 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 23:53:26,960 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 23:53:26,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 23:53:26,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 23:53:26,964 INFO L85 PathProgramCache]: Analyzing trace with hash 6304412, now seen corresponding path program 1 times [2022-04-27 23:53:26,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 23:53:26,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79565211] [2022-04-27 23:53:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 23:53:26,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 23:53:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 23:53:27,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 23:53:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 23:53:27,099 INFO L290 TraceCheckUtils]: 0: Hoare triple {56#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {43#true} is VALID [2022-04-27 23:53:27,099 INFO L290 TraceCheckUtils]: 1: Hoare triple {43#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 23:53:27,100 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {43#true} {43#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 23:53:27,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-27 23:53:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 23:53:27,109 INFO L290 TraceCheckUtils]: 0: Hoare triple {43#true} [119] assume_abort_if_notENTRY-->L8: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {43#true} is VALID [2022-04-27 23:53:27,110 INFO L290 TraceCheckUtils]: 1: Hoare triple {43#true} [121] L8-->L8-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,110 INFO L290 TraceCheckUtils]: 2: Hoare triple {44#false} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,110 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {44#false} {43#true} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {44#false} is VALID [2022-04-27 23:53:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-27 23:53:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 23:53:27,120 INFO L290 TraceCheckUtils]: 0: Hoare triple {43#true} [119] assume_abort_if_notENTRY-->L8: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {43#true} is VALID [2022-04-27 23:53:27,121 INFO L290 TraceCheckUtils]: 1: Hoare triple {43#true} [121] L8-->L8-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,121 INFO L290 TraceCheckUtils]: 2: Hoare triple {44#false} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,121 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {44#false} {44#false} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {44#false} is VALID [2022-04-27 23:53:27,122 INFO L272 TraceCheckUtils]: 0: Hoare triple {43#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {56#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 23:53:27,123 INFO L290 TraceCheckUtils]: 1: Hoare triple {56#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {43#true} is VALID [2022-04-27 23:53:27,123 INFO L290 TraceCheckUtils]: 2: Hoare triple {43#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 23:53:27,123 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {43#true} {43#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 23:53:27,123 INFO L272 TraceCheckUtils]: 4: Hoare triple {43#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 23:53:27,123 INFO L290 TraceCheckUtils]: 5: Hoare triple {43#true} [115] mainENTRY-->L24: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_3, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_3, main_~p~0=v_main_~p~0_3, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {43#true} is VALID [2022-04-27 23:53:27,123 INFO L272 TraceCheckUtils]: 6: Hoare triple {43#true} [117] L24-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {43#true} is VALID [2022-04-27 23:53:27,124 INFO L290 TraceCheckUtils]: 7: Hoare triple {43#true} [119] assume_abort_if_notENTRY-->L8: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {43#true} is VALID [2022-04-27 23:53:27,126 INFO L290 TraceCheckUtils]: 8: Hoare triple {43#true} [121] L8-->L8-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,126 INFO L290 TraceCheckUtils]: 9: Hoare triple {44#false} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,126 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {44#false} {43#true} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {44#false} is VALID [2022-04-27 23:53:27,126 INFO L272 TraceCheckUtils]: 11: Hoare triple {44#false} [118] L24-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {43#true} is VALID [2022-04-27 23:53:27,127 INFO L290 TraceCheckUtils]: 12: Hoare triple {43#true} [119] assume_abort_if_notENTRY-->L8: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {43#true} is VALID [2022-04-27 23:53:27,127 INFO L290 TraceCheckUtils]: 13: Hoare triple {43#true} [121] L8-->L8-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,127 INFO L290 TraceCheckUtils]: 14: Hoare triple {44#false} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,128 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {44#false} {44#false} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {44#false} is VALID [2022-04-27 23:53:27,128 INFO L290 TraceCheckUtils]: 16: Hoare triple {44#false} [120] L25-->L34-3: Formula: (and (= v_main_~b~0_4 v_main_~y~0_6) (= v_main_~q~0_5 0) (= v_main_~s~0_5 1) (= v_main_~p~0_5 1) (= v_main_~a~0_4 v_main_~x~0_6) (= v_main_~r~0_5 0)) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6, main_~b~0=v_main_~b~0_4, main_~p~0=v_main_~p~0_5, main_~r~0=v_main_~r~0_5, main_~s~0=v_main_~s~0_5, main_~a~0=v_main_~a~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {44#false} is VALID [2022-04-27 23:53:27,128 INFO L290 TraceCheckUtils]: 17: Hoare triple {44#false} [123] L34-3-->L34-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,128 INFO L272 TraceCheckUtils]: 18: Hoare triple {44#false} [126] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_12 v_main_~r~0_8) (* (- 1) (* v_main_~y~0_12 v_main_~s~0_8)) (* (- 1) (* v_main_~x~0_12 v_main_~q~0_8)) (* v_main_~x~0_12 v_main_~p~0_8)) v_main_~a~0_10) 1 0) |v___VERIFIER_assert_#in~condInParam_5|) InVars {main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_12, main_~y~0=v_main_~y~0_12, main_~p~0=v_main_~p~0_8, main_~r~0=v_main_~r~0_8, main_~s~0=v_main_~s~0_8, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_5|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {44#false} is VALID [2022-04-27 23:53:27,128 INFO L290 TraceCheckUtils]: 19: Hoare triple {44#false} [130] __VERIFIER_assertENTRY-->L11: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {44#false} is VALID [2022-04-27 23:53:27,129 INFO L290 TraceCheckUtils]: 20: Hoare triple {44#false} [134] L11-->L12: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,129 INFO L290 TraceCheckUtils]: 21: Hoare triple {44#false} [138] L12-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 23:53:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-27 23:53:27,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 23:53:27,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79565211] [2022-04-27 23:53:27,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79565211] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 23:53:27,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 23:53:27,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 23:53:27,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55492243] [2022-04-27 23:53:27,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 23:53:27,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-04-27 23:53:27,135 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 23:53:27,137 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,167 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 23:53:27,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 23:53:27,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 23:53:27,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 23:53:27,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 23:53:27,191 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.48) internal successors, (37), 26 states have internal predecessors, (37), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 23:53:27,363 INFO L93 Difference]: Finished difference Result 74 states and 111 transitions. [2022-04-27 23:53:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 23:53:27,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-04-27 23:53:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 23:53:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2022-04-27 23:53:27,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2022-04-27 23:53:27,378 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 111 transitions. [2022-04-27 23:53:27,482 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 23:53:27,488 INFO L225 Difference]: With dead ends: 74 [2022-04-27 23:53:27,488 INFO L226 Difference]: Without dead ends: 36 [2022-04-27 23:53:27,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 23:53:27,492 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 23:53:27,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 51 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 23:53:27,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-04-27 23:53:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2022-04-27 23:53:27,511 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 23:53:27,512 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:27,516 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:27,517 INFO L87 Difference]: Start difference. First operand 36 states. Second operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:27,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 23:53:27,520 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-04-27 23:53:27,520 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2022-04-27 23:53:27,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 23:53:27,521 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 23:53:27,521 INFO L74 IsIncluded]: Start isIncluded. First operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 36 states. [2022-04-27 23:53:27,521 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 36 states. [2022-04-27 23:53:27,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 23:53:27,524 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-04-27 23:53:27,524 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2022-04-27 23:53:27,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 23:53:27,525 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 23:53:27,525 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 23:53:27,525 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 23:53:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2022-04-27 23:53:27,528 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 22 [2022-04-27 23:53:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 23:53:27,528 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-04-27 23:53:27,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2022-04-27 23:53:27,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-27 23:53:27,529 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 23:53:27,529 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 23:53:27,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 23:53:27,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 23:53:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 23:53:27,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1535904754, now seen corresponding path program 1 times [2022-04-27 23:53:27,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 23:53:27,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326679041] [2022-04-27 23:53:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 23:53:27,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 23:53:27,547 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 23:53:27,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293379071] [2022-04-27 23:53:27,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 23:53:27,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 23:53:27,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 23:53:27,549 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) [2022-04-27 23:53:27,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-27 23:53:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 23:53:27,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-27 23:53:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 23:53:27,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 23:53:27,744 INFO L272 TraceCheckUtils]: 0: Hoare triple {284#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {284#true} is VALID [2022-04-27 23:53:27,745 INFO L290 TraceCheckUtils]: 1: Hoare triple {284#true} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,746 INFO L290 TraceCheckUtils]: 2: Hoare triple {292#(<= ~counter~0 0)} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,746 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {292#(<= ~counter~0 0)} {284#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,747 INFO L272 TraceCheckUtils]: 4: Hoare triple {292#(<= ~counter~0 0)} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,747 INFO L290 TraceCheckUtils]: 5: Hoare triple {292#(<= ~counter~0 0)} [115] mainENTRY-->L24: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_3, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_3, main_~p~0=v_main_~p~0_3, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,748 INFO L272 TraceCheckUtils]: 6: Hoare triple {292#(<= ~counter~0 0)} [117] L24-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,748 INFO L290 TraceCheckUtils]: 7: Hoare triple {292#(<= ~counter~0 0)} [119] assume_abort_if_notENTRY-->L8: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,748 INFO L290 TraceCheckUtils]: 8: Hoare triple {292#(<= ~counter~0 0)} [122] L8-->L8-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,749 INFO L290 TraceCheckUtils]: 9: Hoare triple {292#(<= ~counter~0 0)} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,749 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {292#(<= ~counter~0 0)} {292#(<= ~counter~0 0)} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,750 INFO L272 TraceCheckUtils]: 11: Hoare triple {292#(<= ~counter~0 0)} [118] L24-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,750 INFO L290 TraceCheckUtils]: 12: Hoare triple {292#(<= ~counter~0 0)} [119] assume_abort_if_notENTRY-->L8: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,751 INFO L290 TraceCheckUtils]: 13: Hoare triple {292#(<= ~counter~0 0)} [122] L8-->L8-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,751 INFO L290 TraceCheckUtils]: 14: Hoare triple {292#(<= ~counter~0 0)} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,752 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {292#(<= ~counter~0 0)} {292#(<= ~counter~0 0)} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,752 INFO L290 TraceCheckUtils]: 16: Hoare triple {292#(<= ~counter~0 0)} [120] L25-->L34-3: Formula: (and (= v_main_~b~0_4 v_main_~y~0_6) (= v_main_~q~0_5 0) (= v_main_~s~0_5 1) (= v_main_~p~0_5 1) (= v_main_~a~0_4 v_main_~x~0_6) (= v_main_~r~0_5 0)) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6, main_~b~0=v_main_~b~0_4, main_~p~0=v_main_~p~0_5, main_~r~0=v_main_~r~0_5, main_~s~0=v_main_~s~0_5, main_~a~0=v_main_~a~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {292#(<= ~counter~0 0)} is VALID [2022-04-27 23:53:27,753 INFO L290 TraceCheckUtils]: 17: Hoare triple {292#(<= ~counter~0 0)} [124] L34-3-->L34-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {341#(<= |main_#t~post6| 0)} is VALID [2022-04-27 23:53:27,753 INFO L290 TraceCheckUtils]: 18: Hoare triple {341#(<= |main_#t~post6| 0)} [127] L34-1-->L34-4: Formula: (not (< |v_main_#t~post6_3| 1)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {285#false} is VALID [2022-04-27 23:53:27,753 INFO L272 TraceCheckUtils]: 19: Hoare triple {285#false} [126] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_12 v_main_~r~0_8) (* (- 1) (* v_main_~y~0_12 v_main_~s~0_8)) (* (- 1) (* v_main_~x~0_12 v_main_~q~0_8)) (* v_main_~x~0_12 v_main_~p~0_8)) v_main_~a~0_10) 1 0) |v___VERIFIER_assert_#in~condInParam_5|) InVars {main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_12, main_~y~0=v_main_~y~0_12, main_~p~0=v_main_~p~0_8, main_~r~0=v_main_~r~0_8, main_~s~0=v_main_~s~0_8, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_5|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {285#false} is VALID [2022-04-27 23:53:27,754 INFO L290 TraceCheckUtils]: 20: Hoare triple {285#false} [130] __VERIFIER_assertENTRY-->L11: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {285#false} is VALID [2022-04-27 23:53:27,754 INFO L290 TraceCheckUtils]: 21: Hoare triple {285#false} [134] L11-->L12: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {285#false} is VALID [2022-04-27 23:53:27,754 INFO L290 TraceCheckUtils]: 22: Hoare triple {285#false} [138] L12-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {285#false} is VALID [2022-04-27 23:53:27,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-27 23:53:27,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 23:53:27,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 23:53:27,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326679041] [2022-04-27 23:53:27,755 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 23:53:27,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293379071] [2022-04-27 23:53:27,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293379071] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 23:53:27,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 23:53:27,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-27 23:53:27,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503213391] [2022-04-27 23:53:27,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 23:53:27,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-27 23:53:27,757 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 23:53:27,757 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,771 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 23:53:27,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-27 23:53:27,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 23:53:27,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-27 23:53:27,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-27 23:53:27,772 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 23:53:27,836 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2022-04-27 23:53:27,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-27 23:53:27,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-27 23:53:27,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 23:53:27,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2022-04-27 23:53:27,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2022-04-27 23:53:27,840 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 54 transitions. [2022-04-27 23:53:27,892 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 23:53:27,894 INFO L225 Difference]: With dead ends: 44 [2022-04-27 23:53:27,894 INFO L226 Difference]: Without dead ends: 37 [2022-04-27 23:53:27,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-27 23:53:27,895 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 23:53:27,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 23:53:27,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-04-27 23:53:27,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-04-27 23:53:27,902 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 23:53:27,903 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:27,903 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:27,903 INFO L87 Difference]: Start difference. First operand 37 states. Second operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:27,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 23:53:27,905 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2022-04-27 23:53:27,905 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2022-04-27 23:53:27,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 23:53:27,906 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 23:53:27,906 INFO L74 IsIncluded]: Start isIncluded. First operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 37 states. [2022-04-27 23:53:27,906 INFO L87 Difference]: Start difference. First operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 37 states. [2022-04-27 23:53:27,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 23:53:27,909 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2022-04-27 23:53:27,909 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2022-04-27 23:53:27,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 23:53:27,909 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 23:53:27,909 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 23:53:27,910 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 23:53:27,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2022-04-27 23:53:27,912 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 23 [2022-04-27 23:53:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 23:53:27,912 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2022-04-27 23:53:27,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 23:53:27,912 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2022-04-27 23:53:27,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-27 23:53:27,913 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 23:53:27,913 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 23:53:27,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-27 23:53:28,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 23:53:28,130 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 23:53:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 23:53:28,130 INFO L85 PathProgramCache]: Analyzing trace with hash 401530880, now seen corresponding path program 1 times [2022-04-27 23:53:28,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 23:53:28,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883050365] [2022-04-27 23:53:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 23:53:28,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 23:53:28,166 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 23:53:28,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886757199] [2022-04-27 23:53:28,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 23:53:28,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 23:53:28,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 23:53:28,172 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) [2022-04-27 23:53:28,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-27 23:53:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 23:53:28,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 23:53:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 23:53:28,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 23:53:28,313 INFO L272 TraceCheckUtils]: 0: Hoare triple {547#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {547#true} is VALID [2022-04-27 23:53:28,313 INFO L290 TraceCheckUtils]: 1: Hoare triple {547#true} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {547#true} is VALID [2022-04-27 23:53:28,313 INFO L290 TraceCheckUtils]: 2: Hoare triple {547#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {547#true} is VALID [2022-04-27 23:53:28,314 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {547#true} {547#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {547#true} is VALID [2022-04-27 23:53:28,314 INFO L272 TraceCheckUtils]: 4: Hoare triple {547#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {547#true} is VALID [2022-04-27 23:53:28,314 INFO L290 TraceCheckUtils]: 5: Hoare triple {547#true} [115] mainENTRY-->L24: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_3, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_3, main_~p~0=v_main_~p~0_3, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {547#true} is VALID [2022-04-27 23:53:28,314 INFO L272 TraceCheckUtils]: 6: Hoare triple {547#true} [117] L24-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {547#true} is VALID [2022-04-27 23:53:28,314 INFO L290 TraceCheckUtils]: 7: Hoare triple {547#true} [119] assume_abort_if_notENTRY-->L8: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {547#true} is VALID [2022-04-27 23:53:28,314 INFO L290 TraceCheckUtils]: 8: Hoare triple {547#true} [122] L8-->L8-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {547#true} is VALID [2022-04-27 23:53:28,314 INFO L290 TraceCheckUtils]: 9: Hoare triple {547#true} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {547#true} is VALID [2022-04-27 23:53:28,315 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {547#true} {547#true} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {547#true} is VALID [2022-04-27 23:53:28,315 INFO L272 TraceCheckUtils]: 11: Hoare triple {547#true} [118] L24-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {547#true} is VALID [2022-04-27 23:53:28,315 INFO L290 TraceCheckUtils]: 12: Hoare triple {547#true} [119] assume_abort_if_notENTRY-->L8: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {588#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-27 23:53:28,316 INFO L290 TraceCheckUtils]: 13: Hoare triple {588#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [122] L8-->L8-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {592#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-27 23:53:28,316 INFO L290 TraceCheckUtils]: 14: Hoare triple {592#(not (= |assume_abort_if_not_#in~cond| 0))} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {592#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-27 23:53:28,316 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {592#(not (= |assume_abort_if_not_#in~cond| 0))} {547#true} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {599#(<= 1 main_~y~0)} is VALID [2022-04-27 23:53:28,317 INFO L290 TraceCheckUtils]: 16: Hoare triple {599#(<= 1 main_~y~0)} [120] L25-->L34-3: Formula: (and (= v_main_~b~0_4 v_main_~y~0_6) (= v_main_~q~0_5 0) (= v_main_~s~0_5 1) (= v_main_~p~0_5 1) (= v_main_~a~0_4 v_main_~x~0_6) (= v_main_~r~0_5 0)) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6, main_~b~0=v_main_~b~0_4, main_~p~0=v_main_~p~0_5, main_~r~0=v_main_~r~0_5, main_~s~0=v_main_~s~0_5, main_~a~0=v_main_~a~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {603#(<= 1 main_~b~0)} is VALID [2022-04-27 23:53:28,317 INFO L290 TraceCheckUtils]: 17: Hoare triple {603#(<= 1 main_~b~0)} [124] L34-3-->L34-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {603#(<= 1 main_~b~0)} is VALID [2022-04-27 23:53:28,318 INFO L290 TraceCheckUtils]: 18: Hoare triple {603#(<= 1 main_~b~0)} [128] L34-1-->L35: Formula: (< |v_main_#t~post6_5| 1) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {603#(<= 1 main_~b~0)} is VALID [2022-04-27 23:53:28,318 INFO L290 TraceCheckUtils]: 19: Hoare triple {603#(<= 1 main_~b~0)} [131] L35-->L34-4: Formula: (= v_main_~b~0_5 0) InVars {main_~b~0=v_main_~b~0_5} OutVars{main_~b~0=v_main_~b~0_5} AuxVars[] AssignedVars[] {548#false} is VALID [2022-04-27 23:53:28,318 INFO L272 TraceCheckUtils]: 20: Hoare triple {548#false} [126] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_12 v_main_~r~0_8) (* (- 1) (* v_main_~y~0_12 v_main_~s~0_8)) (* (- 1) (* v_main_~x~0_12 v_main_~q~0_8)) (* v_main_~x~0_12 v_main_~p~0_8)) v_main_~a~0_10) 1 0) |v___VERIFIER_assert_#in~condInParam_5|) InVars {main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_12, main_~y~0=v_main_~y~0_12, main_~p~0=v_main_~p~0_8, main_~r~0=v_main_~r~0_8, main_~s~0=v_main_~s~0_8, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_5|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {548#false} is VALID [2022-04-27 23:53:28,318 INFO L290 TraceCheckUtils]: 21: Hoare triple {548#false} [130] __VERIFIER_assertENTRY-->L11: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {548#false} is VALID [2022-04-27 23:53:28,318 INFO L290 TraceCheckUtils]: 22: Hoare triple {548#false} [134] L11-->L12: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {548#false} is VALID [2022-04-27 23:53:28,319 INFO L290 TraceCheckUtils]: 23: Hoare triple {548#false} [138] L12-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {548#false} is VALID [2022-04-27 23:53:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-27 23:53:28,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 23:53:28,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 23:53:28,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883050365] [2022-04-27 23:53:28,319 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 23:53:28,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886757199] [2022-04-27 23:53:28,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886757199] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 23:53:28,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 23:53:28,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-27 23:53:28,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954918358] [2022-04-27 23:53:28,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 23:53:28,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-04-27 23:53:28,320 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 23:53:28,320 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 23:53:28,335 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 23:53:28,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-27 23:53:28,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 23:53:28,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-27 23:53:28,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-27 23:53:28,335 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 23:53:28,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 23:53:28,527 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2022-04-27 23:53:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-27 23:53:28,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-04-27 23:53:28,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 23:53:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 23:53:28,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 75 transitions. [2022-04-27 23:53:28,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 23:53:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 75 transitions. [2022-04-27 23:53:28,531 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 75 transitions. [2022-04-27 23:53:28,584 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 23:53:28,585 INFO L225 Difference]: With dead ends: 57 [2022-04-27 23:53:28,585 INFO L226 Difference]: Without dead ends: 50 [2022-04-27 23:53:28,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-27 23:53:28,586 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 46 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 23:53:28,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 148 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 23:53:28,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-04-27 23:53:28,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2022-04-27 23:53:28,599 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 23:53:28,600 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:28,600 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:28,600 INFO L87 Difference]: Start difference. First operand 50 states. Second operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:28,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 23:53:28,602 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-04-27 23:53:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2022-04-27 23:53:28,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 23:53:28,603 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 23:53:28,603 INFO L74 IsIncluded]: Start isIncluded. First operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 50 states. [2022-04-27 23:53:28,604 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 50 states. [2022-04-27 23:53:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 23:53:28,605 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-04-27 23:53:28,606 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2022-04-27 23:53:28,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 23:53:28,606 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 23:53:28,606 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 23:53:28,606 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 23:53:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 23:53:28,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2022-04-27 23:53:28,608 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 24 [2022-04-27 23:53:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 23:53:28,608 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2022-04-27 23:53:28,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 23:53:28,608 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2022-04-27 23:53:28,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-27 23:53:28,609 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 23:53:28,609 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 23:53:28,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-27 23:53:28,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-27 23:53:28,825 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 23:53:28,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 23:53:28,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2110136122, now seen corresponding path program 1 times [2022-04-27 23:53:28,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 23:53:28,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165398551] [2022-04-27 23:53:28,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 23:53:28,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 23:53:28,845 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 23:53:28,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186068678] [2022-04-27 23:53:28,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 23:53:28,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 23:53:28,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 23:53:28,848 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) [2022-04-27 23:53:28,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-27 23:53:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 23:53:28,902 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-27 23:53:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 23:53:28,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-27 23:53:28,926 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-04-27 23:53:28,927 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 23:53:28,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-27 23:53:29,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 23:53:29,165 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-04-27 23:53:29,168 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 23:53:29,185 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L8-2 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-27 23:53:29,186 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L73 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L48-4 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L48-3 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L48-3 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L34-4 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L41-3 has no Hoare annotation [2022-04-27 23:53:29,187 WARN L170 areAnnotationChecker]: L41-3 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L41-4 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2022-04-27 23:53:29,188 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2022-04-27 23:53:29,188 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-27 23:53:29,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 11:53:29 BasicIcfg [2022-04-27 23:53:29,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 23:53:29,189 INFO L158 Benchmark]: Toolchain (without parser) took 2922.00ms. Allocated memory was 202.4MB in the beginning and 247.5MB in the end (delta: 45.1MB). Free memory was 146.6MB in the beginning and 128.9MB in the end (delta: 17.7MB). Peak memory consumption was 64.1MB. Max. memory is 8.0GB. [2022-04-27 23:53:29,190 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 202.4MB. Free memory was 162.7MB in the beginning and 162.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 23:53:29,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.09ms. Allocated memory is still 202.4MB. Free memory was 146.3MB in the beginning and 171.8MB in the end (delta: -25.5MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-04-27 23:53:29,190 INFO L158 Benchmark]: Boogie Preprocessor took 25.06ms. Allocated memory is still 202.4MB. Free memory was 171.8MB in the beginning and 170.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 23:53:29,190 INFO L158 Benchmark]: RCFGBuilder took 309.65ms. Allocated memory is still 202.4MB. Free memory was 169.7MB in the beginning and 157.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-27 23:53:29,191 INFO L158 Benchmark]: IcfgTransformer took 24.72ms. Allocated memory is still 202.4MB. Free memory was 157.1MB in the beginning and 155.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 23:53:29,191 INFO L158 Benchmark]: TraceAbstraction took 2283.92ms. Allocated memory was 202.4MB in the beginning and 247.5MB in the end (delta: 45.1MB). Free memory was 154.5MB in the beginning and 128.9MB in the end (delta: 25.6MB). Peak memory consumption was 71.7MB. Max. memory is 8.0GB. [2022-04-27 23:53:29,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 202.4MB. Free memory was 162.7MB in the beginning and 162.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 259.09ms. Allocated memory is still 202.4MB. Free memory was 146.3MB in the beginning and 171.8MB in the end (delta: -25.5MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.06ms. Allocated memory is still 202.4MB. Free memory was 171.8MB in the beginning and 170.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 309.65ms. Allocated memory is still 202.4MB. Free memory was 169.7MB in the beginning and 157.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 24.72ms. Allocated memory is still 202.4MB. Free memory was 157.1MB in the beginning and 155.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2283.92ms. Allocated memory was 202.4MB in the beginning and 247.5MB in the end (delta: 45.1MB). Free memory was 154.5MB in the beginning and 128.9MB in the end (delta: 25.6MB). Peak memory consumption was 71.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L18] int counter = 0; VAL [\old(counter)=4, counter=0] [L20] int x, y; [L21] long long a, b, p, q, r, s; [L22] x = __VERIFIER_nondet_int() [L23] y = __VERIFIER_nondet_int() [L24] CALL assume_abort_if_not(x >= 1) VAL [\old(cond)=1, \old(counter)=0, counter=0] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0] [L24] RET assume_abort_if_not(x >= 1) VAL [\old(counter)=0, counter=0, x=1, y=2] [L25] CALL assume_abort_if_not(y >= 1) VAL [\old(cond)=1, \old(counter)=0, counter=0] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0] [L25] RET assume_abort_if_not(y >= 1) VAL [\old(counter)=0, counter=0, x=1, y=2] [L27] a = x [L28] b = y [L29] p = 1 [L30] q = 0 [L31] r = 0 [L32] s = 1 VAL [\old(counter)=0, a=1, b=2, counter=0, p=1, q=0, r=0, s=1, x=1, y=2] [L34] EXPR counter++ VAL [\old(counter)=0, a=1, b=2, counter=1, counter++=0, p=1, q=0, r=0, s=1, x=1, y=2] [L34] COND TRUE counter++<1 [L35] COND FALSE !(!(b != 0)) [L37] long long c, k; [L38] c = a [L39] k = 0 VAL [\old(counter)=0, a=1, b=2, c=1, counter=1, k=0, p=1, q=0, r=0, s=1, x=1, y=2] [L41] EXPR counter++ VAL [\old(counter)=0, a=1, b=2, c=1, counter=2, counter++=1, k=0, p=1, q=0, r=0, s=1, x=1, y=2] [L41] COND FALSE !(counter++<1) [L63] a = b [L64] b = c [L65] long long temp; [L66] temp = p [L67] p = q [L68] q = temp - q * k [L69] temp = r [L70] r = s [L71] s = temp - s * k VAL [\old(counter)=0, a=2, b=1, c=1, counter=2, k=0, p=0, q=1, r=1, s=0, temp=0, x=1, y=2] [L34] EXPR counter++ VAL [\old(counter)=0, a=2, b=1, c=1, counter=3, counter++=2, k=0, p=0, q=1, r=1, s=0, temp=0, x=1, y=2] [L34] COND FALSE !(counter++<1) [L73] CALL __VERIFIER_assert(p*x - q*x + r*y - s*y == a) VAL [\old(cond)=0, \old(counter)=0, counter=3] [L11] COND TRUE !(cond) VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=3] [L13] reach_error() VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 312 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 181 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 131 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 125 SizeOfPredicates, 3 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-27 23:53:29,218 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...