/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/ps5-ll_unwindbound5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-28 01:32:49,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-28 01:32:49,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-28 01:32:49,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-28 01:32:49,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-28 01:32:49,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-28 01:32:49,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-28 01:32:49,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-28 01:32:49,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-28 01:32:49,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-28 01:32:49,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-28 01:32:49,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-28 01:32:49,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-28 01:32:49,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-28 01:32:49,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-28 01:32:49,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-28 01:32:49,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-28 01:32:49,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-28 01:32:49,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-28 01:32:49,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-28 01:32:49,994 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-28 01:32:49,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-28 01:32:49,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-28 01:32:49,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-28 01:32:49,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-28 01:32:49,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-28 01:32:49,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-28 01:32:49,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-28 01:32:49,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-28 01:32:49,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-28 01:32:49,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-28 01:32:50,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-28 01:32:50,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-28 01:32:50,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-28 01:32:50,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-28 01:32:50,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-28 01:32:50,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-28 01:32:50,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-28 01:32:50,031 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-28 01:32:50,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-28 01:32:50,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-28 01:32:50,031 INFO L138 SettingsManager]: * Use SBE=true [2022-04-28 01:32:50,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-28 01:32:50,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-28 01:32:50,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-28 01:32:50,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 01:32:50,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-28 01:32:50,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-28 01:32:50,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-28 01:32:50,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-28 01:32:50,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-28 01:32:50,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-28 01:32:50,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-28 01:32:50,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-28 01:32:50,034 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-28 01:32:50,034 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-28 01:32:50,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-28 01:32:50,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-28 01:32:50,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-28 01:32:50,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-28 01:32:50,245 INFO L275 PluginConnector]: CDTParser initialized [2022-04-28 01:32:50,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound5.c [2022-04-28 01:32:50,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639893cbd/9b077fa0d5e0402daa0f058bd4c286f7/FLAG8deedb2c0 [2022-04-28 01:32:50,666 INFO L306 CDTParser]: Found 1 translation units. [2022-04-28 01:32:50,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound5.c [2022-04-28 01:32:50,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639893cbd/9b077fa0d5e0402daa0f058bd4c286f7/FLAG8deedb2c0 [2022-04-28 01:32:50,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639893cbd/9b077fa0d5e0402daa0f058bd4c286f7 [2022-04-28 01:32:50,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-28 01:32:50,688 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-28 01:32:50,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-28 01:32:50,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-28 01:32:50,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-28 01:32:50,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501f7e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50, skipping insertion in model container [2022-04-28 01:32:50,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-28 01:32:50,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-28 01:32:50,872 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/ps5-ll_unwindbound5.c[458,471] [2022-04-28 01:32:50,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 01:32:50,905 INFO L203 MainTranslator]: Completed pre-run [2022-04-28 01:32:50,915 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/ps5-ll_unwindbound5.c[458,471] [2022-04-28 01:32:50,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 01:32:50,943 INFO L208 MainTranslator]: Completed translation [2022-04-28 01:32:50,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50 WrapperNode [2022-04-28 01:32:50,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-28 01:32:50,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-28 01:32:50,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-28 01:32:50,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-28 01:32:50,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-28 01:32:50,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-28 01:32:50,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-28 01:32:50,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-28 01:32:50,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50" (1/1) ... [2022-04-28 01:32:50,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 01:32:50,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:32:50,994 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) [2022-04-28 01:32:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-28 01:32:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-28 01:32:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-28 01:32:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-28 01:32:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-28 01:32:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-28 01:32:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-28 01:32:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-28 01:32:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-28 01:32:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-28 01:32:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2022-04-28 01:32:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-28 01:32:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-28 01:32:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-28 01:32:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-28 01:32:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-28 01:32:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-28 01:32:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-28 01:32:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-28 01:32:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-28 01:32:51,015 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 [2022-04-28 01:32:51,077 INFO L234 CfgBuilder]: Building ICFG [2022-04-28 01:32:51,078 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-28 01:32:51,186 INFO L275 CfgBuilder]: Performing block encoding [2022-04-28 01:32:51,190 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-28 01:32:51,190 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-28 01:32:51,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 01:32:51 BoogieIcfgContainer [2022-04-28 01:32:51,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-28 01:32:51,192 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-28 01:32:51,192 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-28 01:32:51,204 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-28 01:32:51,210 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 01:32:51" (1/1) ... [2022-04-28 01:32:51,211 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-28 01:32:51,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.04 01:32:51 BasicIcfg [2022-04-28 01:32:51,248 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-28 01:32:51,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-28 01:32:51,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-28 01:32:51,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-28 01:32:51,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 01:32:50" (1/4) ... [2022-04-28 01:32:51,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e2cb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 01:32:51, skipping insertion in model container [2022-04-28 01:32:51,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:32:50" (2/4) ... [2022-04-28 01:32:51,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e2cb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 01:32:51, skipping insertion in model container [2022-04-28 01:32:51,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 01:32:51" (3/4) ... [2022-04-28 01:32:51,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e2cb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 01:32:51, skipping insertion in model container [2022-04-28 01:32:51,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.04 01:32:51" (4/4) ... [2022-04-28 01:32:51,253 INFO L111 eAbstractionObserver]: Analyzing ICFG ps5-ll_unwindbound5.cqvasr [2022-04-28 01:32:51,262 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-28 01:32:51,262 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-28 01:32:51,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-28 01:32:51,301 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@63b9da36, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5a7b3aa3 [2022-04-28 01:32:51,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-28 01:32:51,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-28 01:32:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-28 01:32:51,310 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:32:51,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:32:51,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:32:51,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:32:51,314 INFO L85 PathProgramCache]: Analyzing trace with hash 843387237, now seen corresponding path program 1 times [2022-04-28 01:32:51,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:32:51,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865313896] [2022-04-28 01:32:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:51,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:32:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 01:32:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:51,475 INFO L290 TraceCheckUtils]: 0: Hoare triple {41#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {32#true} is VALID [2022-04-28 01:32:51,476 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-28 01:32:51,476 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {32#true} {32#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-28 01:32:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-28 01:32:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:51,482 INFO L290 TraceCheckUtils]: 0: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L7: 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] {32#true} is VALID [2022-04-28 01:32:51,483 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-28 01:32:51,483 INFO L290 TraceCheckUtils]: 2: Hoare triple {33#false} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-28 01:32:51,483 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {33#false} {32#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-28 01:32:51,484 INFO L272 TraceCheckUtils]: 0: Hoare triple {32#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {41#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 01:32:51,484 INFO L290 TraceCheckUtils]: 1: Hoare triple {41#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {32#true} is VALID [2022-04-28 01:32:51,485 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-28 01:32:51,485 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-28 01:32:51,485 INFO L272 TraceCheckUtils]: 4: Hoare triple {32#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-28 01:32:51,485 INFO L290 TraceCheckUtils]: 5: Hoare triple {32#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {32#true} is VALID [2022-04-28 01:32:51,485 INFO L272 TraceCheckUtils]: 6: Hoare triple {32#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {32#true} is VALID [2022-04-28 01:32:51,486 INFO L290 TraceCheckUtils]: 7: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L7: 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] {32#true} is VALID [2022-04-28 01:32:51,486 INFO L290 TraceCheckUtils]: 8: Hoare triple {32#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-28 01:32:51,486 INFO L290 TraceCheckUtils]: 9: Hoare triple {33#false} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-28 01:32:51,486 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {33#false} {32#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-28 01:32:51,487 INFO L290 TraceCheckUtils]: 11: Hoare triple {33#false} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {33#false} is VALID [2022-04-28 01:32:51,487 INFO L290 TraceCheckUtils]: 12: Hoare triple {33#false} [73] L28-3-->L28-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-28 01:32:51,487 INFO L272 TraceCheckUtils]: 13: Hoare triple {33#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {33#false} is VALID [2022-04-28 01:32:51,487 INFO L290 TraceCheckUtils]: 14: Hoare triple {33#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {33#false} is VALID [2022-04-28 01:32:51,487 INFO L290 TraceCheckUtils]: 15: Hoare triple {33#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-28 01:32:51,488 INFO L290 TraceCheckUtils]: 16: Hoare triple {33#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-28 01:32:51,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:32:51,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:32:51,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865313896] [2022-04-28 01:32:51,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865313896] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:32:51,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:32:51,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-28 01:32:51,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359992924] [2022-04-28 01:32:51,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:32:51,493 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, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-28 01:32:51,494 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:32:51,496 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, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:51,525 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:51,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-28 01:32:51,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:32:51,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-28 01:32:51,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-28 01:32:51,543 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:51,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:51,668 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2022-04-28 01:32:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-28 01:32:51,669 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, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-28 01:32:51,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:32:51,670 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, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:51,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-04-28 01:32:51,682 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, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:51,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-04-28 01:32:51,690 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 65 transitions. [2022-04-28 01:32:51,759 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:51,766 INFO L225 Difference]: With dead ends: 50 [2022-04-28 01:32:51,766 INFO L226 Difference]: Without dead ends: 25 [2022-04-28 01:32:51,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-28 01:32:51,773 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 01:32:51,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 34 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:32:51,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-04-28 01:32:51,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-04-28 01:32:51,799 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:32:51,800 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:32:51,801 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:32:51,801 INFO L87 Difference]: Start difference. First operand 25 states. Second operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:32:51,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:51,812 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-04-28 01:32:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-28 01:32:51,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:51,813 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:51,813 INFO L74 IsIncluded]: Start isIncluded. First operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 25 states. [2022-04-28 01:32:51,813 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 25 states. [2022-04-28 01:32:51,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:51,815 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-04-28 01:32:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-28 01:32:51,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:51,816 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:51,816 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:32:51,816 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:32:51,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:32:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-04-28 01:32:51,818 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2022-04-28 01:32:51,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:32:51,818 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-04-28 01:32:51,819 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, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:51,819 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-04-28 01:32:51,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-28 01:32:51,819 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:32:51,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:32:51,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-28 01:32:51,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:32:51,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:32:51,820 INFO L85 PathProgramCache]: Analyzing trace with hash 208087835, now seen corresponding path program 1 times [2022-04-28 01:32:51,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:32:51,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051778303] [2022-04-28 01:32:51,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:51,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:32:51,848 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:32:51,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341737420] [2022-04-28 01:32:51,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:51,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:32:51,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:32:51,850 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) [2022-04-28 01:32:51,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-28 01:32:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:51,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-28 01:32:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:51,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:32:52,013 INFO L272 TraceCheckUtils]: 0: Hoare triple {196#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {196#true} is VALID [2022-04-28 01:32:52,014 INFO L290 TraceCheckUtils]: 1: Hoare triple {196#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,014 INFO L290 TraceCheckUtils]: 2: Hoare triple {204#(<= ~counter~0 0)} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,015 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {204#(<= ~counter~0 0)} {196#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,015 INFO L272 TraceCheckUtils]: 4: Hoare triple {204#(<= ~counter~0 0)} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,015 INFO L290 TraceCheckUtils]: 5: Hoare triple {204#(<= ~counter~0 0)} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,016 INFO L272 TraceCheckUtils]: 6: Hoare triple {204#(<= ~counter~0 0)} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,016 INFO L290 TraceCheckUtils]: 7: Hoare triple {204#(<= ~counter~0 0)} [72] assume_abort_if_notENTRY-->L7: 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] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,017 INFO L290 TraceCheckUtils]: 8: Hoare triple {204#(<= ~counter~0 0)} [76] L7-->L7-2: 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[] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,017 INFO L290 TraceCheckUtils]: 9: Hoare triple {204#(<= ~counter~0 0)} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,018 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {204#(<= ~counter~0 0)} {204#(<= ~counter~0 0)} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,018 INFO L290 TraceCheckUtils]: 11: Hoare triple {204#(<= ~counter~0 0)} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {204#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:52,018 INFO L290 TraceCheckUtils]: 12: Hoare triple {204#(<= ~counter~0 0)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {238#(<= |main_#t~post5| 0)} is VALID [2022-04-28 01:32:52,019 INFO L290 TraceCheckUtils]: 13: Hoare triple {238#(<= |main_#t~post5| 0)} [78] L28-1-->L28-4: Formula: (not (< |v_main_#t~post5_3| 5)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {197#false} is VALID [2022-04-28 01:32:52,019 INFO L272 TraceCheckUtils]: 14: Hoare triple {197#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {197#false} is VALID [2022-04-28 01:32:52,019 INFO L290 TraceCheckUtils]: 15: Hoare triple {197#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {197#false} is VALID [2022-04-28 01:32:52,019 INFO L290 TraceCheckUtils]: 16: Hoare triple {197#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {197#false} is VALID [2022-04-28 01:32:52,020 INFO L290 TraceCheckUtils]: 17: Hoare triple {197#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {197#false} is VALID [2022-04-28 01:32:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:32:52,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 01:32:52,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:32:52,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051778303] [2022-04-28 01:32:52,020 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:32:52,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341737420] [2022-04-28 01:32:52,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341737420] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:32:52,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:32:52,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-28 01:32:52,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827668865] [2022-04-28 01:32:52,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:32:52,022 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-04-28 01:32:52,022 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:32:52,022 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 01:32:52,035 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:52,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-28 01:32:52,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:32:52,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-28 01:32:52,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-28 01:32:52,036 INFO L87 Difference]: Start difference. First operand 24 states and 27 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 01:32:52,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:52,080 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-04-28 01:32:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-28 01:32:52,080 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-04-28 01:32:52,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:32:52,080 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 01:32:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-04-28 01:32:52,082 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 01:32:52,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-04-28 01:32:52,083 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 38 transitions. [2022-04-28 01:32:52,109 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:52,110 INFO L225 Difference]: With dead ends: 34 [2022-04-28 01:32:52,110 INFO L226 Difference]: Without dead ends: 26 [2022-04-28 01:32:52,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-28 01:32:52,111 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 01:32:52,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:32:52,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-04-28 01:32:52,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-04-28 01:32:52,117 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:32:52,118 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:32:52,118 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:32:52,118 INFO L87 Difference]: Start difference. First operand 26 states. Second operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:32:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:52,119 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-28 01:32:52,120 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-28 01:32:52,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:52,120 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:52,120 INFO L74 IsIncluded]: Start isIncluded. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states. [2022-04-28 01:32:52,121 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states. [2022-04-28 01:32:52,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:52,122 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-28 01:32:52,122 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-28 01:32:52,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:52,122 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:52,122 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:32:52,122 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:32:52,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:32:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-04-28 01:32:52,124 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2022-04-28 01:32:52,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:32:52,124 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-04-28 01:32:52,124 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 01:32:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-28 01:32:52,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-28 01:32:52,124 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:32:52,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:32:52,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-28 01:32:52,339 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 [2022-04-28 01:32:52,340 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:32:52,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:32:52,340 INFO L85 PathProgramCache]: Analyzing trace with hash 209190102, now seen corresponding path program 1 times [2022-04-28 01:32:52,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:32:52,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768934707] [2022-04-28 01:32:52,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:52,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:32:52,351 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:32:52,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43114134] [2022-04-28 01:32:52,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:52,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:32:52,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:32:52,352 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) [2022-04-28 01:32:52,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-28 01:32:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:52,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-28 01:32:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:52,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:32:52,477 INFO L272 TraceCheckUtils]: 0: Hoare triple {392#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-28 01:32:52,478 INFO L290 TraceCheckUtils]: 1: Hoare triple {392#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {392#true} is VALID [2022-04-28 01:32:52,478 INFO L290 TraceCheckUtils]: 2: Hoare triple {392#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-28 01:32:52,478 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {392#true} {392#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-28 01:32:52,478 INFO L272 TraceCheckUtils]: 4: Hoare triple {392#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-28 01:32:52,478 INFO L290 TraceCheckUtils]: 5: Hoare triple {392#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {392#true} is VALID [2022-04-28 01:32:52,478 INFO L272 TraceCheckUtils]: 6: Hoare triple {392#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {392#true} is VALID [2022-04-28 01:32:52,478 INFO L290 TraceCheckUtils]: 7: Hoare triple {392#true} [72] assume_abort_if_notENTRY-->L7: 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] {392#true} is VALID [2022-04-28 01:32:52,479 INFO L290 TraceCheckUtils]: 8: Hoare triple {392#true} [76] L7-->L7-2: 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[] {392#true} is VALID [2022-04-28 01:32:52,479 INFO L290 TraceCheckUtils]: 9: Hoare triple {392#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-28 01:32:52,479 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {392#true} {392#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {392#true} is VALID [2022-04-28 01:32:52,481 INFO L290 TraceCheckUtils]: 11: Hoare triple {392#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {430#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:52,481 INFO L290 TraceCheckUtils]: 12: Hoare triple {430#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {430#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:52,487 INFO L290 TraceCheckUtils]: 13: Hoare triple {430#(and (= main_~x~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {430#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:52,488 INFO L272 TraceCheckUtils]: 14: Hoare triple {430#(and (= main_~x~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {440#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:32:52,488 INFO L290 TraceCheckUtils]: 15: Hoare triple {440#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {444#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:32:52,489 INFO L290 TraceCheckUtils]: 16: Hoare triple {444#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {393#false} is VALID [2022-04-28 01:32:52,489 INFO L290 TraceCheckUtils]: 17: Hoare triple {393#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {393#false} is VALID [2022-04-28 01:32:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:32:52,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 01:32:52,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:32:52,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768934707] [2022-04-28 01:32:52,492 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:32:52,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43114134] [2022-04-28 01:32:52,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43114134] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:32:52,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:32:52,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 01:32:52,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587542364] [2022-04-28 01:32:52,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:32:52,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-04-28 01:32:52,494 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:32:52,494 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:52,506 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:52,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 01:32:52,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:32:52,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 01:32:52,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-28 01:32:52,507 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:52,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:52,623 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-28 01:32:52,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-28 01:32:52,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-04-28 01:32:52,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:32:52,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:52,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-04-28 01:32:52,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:52,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-04-28 01:32:52,626 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2022-04-28 01:32:52,666 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:52,667 INFO L225 Difference]: With dead ends: 36 [2022-04-28 01:32:52,667 INFO L226 Difference]: Without dead ends: 32 [2022-04-28 01:32:52,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-28 01:32:52,668 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 01:32:52,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 87 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:32:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-04-28 01:32:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-04-28 01:32:52,674 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:32:52,675 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 01:32:52,675 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 01:32:52,675 INFO L87 Difference]: Start difference. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 01:32:52,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:52,677 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-04-28 01:32:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-28 01:32:52,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:52,677 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:52,677 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states. [2022-04-28 01:32:52,678 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states. [2022-04-28 01:32:52,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:52,679 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-04-28 01:32:52,679 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-28 01:32:52,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:52,679 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:52,680 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:32:52,680 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:32:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 01:32:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-04-28 01:32:52,681 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 18 [2022-04-28 01:32:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:32:52,681 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-04-28 01:32:52,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:32:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-28 01:32:52,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-28 01:32:52,682 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:32:52,682 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:32:52,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-28 01:32:52,891 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 [2022-04-28 01:32:52,900 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:32:52,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:32:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1223799235, now seen corresponding path program 1 times [2022-04-28 01:32:52,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:32:52,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639186154] [2022-04-28 01:32:52,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:52,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:32:52,921 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:32:52,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041679329] [2022-04-28 01:32:52,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:52,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:32:52,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:32:52,931 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) [2022-04-28 01:32:52,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-28 01:32:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:52,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-28 01:32:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:52,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:32:53,117 INFO L272 TraceCheckUtils]: 0: Hoare triple {614#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-28 01:32:53,118 INFO L290 TraceCheckUtils]: 1: Hoare triple {614#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,118 INFO L290 TraceCheckUtils]: 2: Hoare triple {622#(<= ~counter~0 0)} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,119 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {622#(<= ~counter~0 0)} {614#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,119 INFO L272 TraceCheckUtils]: 4: Hoare triple {622#(<= ~counter~0 0)} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,120 INFO L290 TraceCheckUtils]: 5: Hoare triple {622#(<= ~counter~0 0)} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,120 INFO L272 TraceCheckUtils]: 6: Hoare triple {622#(<= ~counter~0 0)} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,121 INFO L290 TraceCheckUtils]: 7: Hoare triple {622#(<= ~counter~0 0)} [72] assume_abort_if_notENTRY-->L7: 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] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,121 INFO L290 TraceCheckUtils]: 8: Hoare triple {622#(<= ~counter~0 0)} [76] L7-->L7-2: 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[] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,121 INFO L290 TraceCheckUtils]: 9: Hoare triple {622#(<= ~counter~0 0)} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,124 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {622#(<= ~counter~0 0)} {622#(<= ~counter~0 0)} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,124 INFO L290 TraceCheckUtils]: 11: Hoare triple {622#(<= ~counter~0 0)} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {622#(<= ~counter~0 0)} is VALID [2022-04-28 01:32:53,129 INFO L290 TraceCheckUtils]: 12: Hoare triple {622#(<= ~counter~0 0)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {656#(<= ~counter~0 1)} is VALID [2022-04-28 01:32:53,129 INFO L290 TraceCheckUtils]: 13: Hoare triple {656#(<= ~counter~0 1)} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {656#(<= ~counter~0 1)} is VALID [2022-04-28 01:32:53,130 INFO L272 TraceCheckUtils]: 14: Hoare triple {656#(<= ~counter~0 1)} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {656#(<= ~counter~0 1)} is VALID [2022-04-28 01:32:53,130 INFO L290 TraceCheckUtils]: 15: Hoare triple {656#(<= ~counter~0 1)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {656#(<= ~counter~0 1)} is VALID [2022-04-28 01:32:53,130 INFO L290 TraceCheckUtils]: 16: Hoare triple {656#(<= ~counter~0 1)} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {656#(<= ~counter~0 1)} is VALID [2022-04-28 01:32:53,131 INFO L290 TraceCheckUtils]: 17: Hoare triple {656#(<= ~counter~0 1)} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {656#(<= ~counter~0 1)} is VALID [2022-04-28 01:32:53,131 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {656#(<= ~counter~0 1)} {656#(<= ~counter~0 1)} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {656#(<= ~counter~0 1)} is VALID [2022-04-28 01:32:53,132 INFO L290 TraceCheckUtils]: 19: Hoare triple {656#(<= ~counter~0 1)} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {656#(<= ~counter~0 1)} is VALID [2022-04-28 01:32:53,132 INFO L290 TraceCheckUtils]: 20: Hoare triple {656#(<= ~counter~0 1)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {681#(<= |main_#t~post5| 1)} is VALID [2022-04-28 01:32:53,132 INFO L290 TraceCheckUtils]: 21: Hoare triple {681#(<= |main_#t~post5| 1)} [78] L28-1-->L28-4: Formula: (not (< |v_main_#t~post5_3| 5)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {615#false} is VALID [2022-04-28 01:32:53,133 INFO L272 TraceCheckUtils]: 22: Hoare triple {615#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {615#false} is VALID [2022-04-28 01:32:53,133 INFO L290 TraceCheckUtils]: 23: Hoare triple {615#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {615#false} is VALID [2022-04-28 01:32:53,133 INFO L290 TraceCheckUtils]: 24: Hoare triple {615#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {615#false} is VALID [2022-04-28 01:32:53,133 INFO L290 TraceCheckUtils]: 25: Hoare triple {615#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {615#false} is VALID [2022-04-28 01:32:53,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:32:53,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 01:32:53,293 INFO L290 TraceCheckUtils]: 25: Hoare triple {615#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {615#false} is VALID [2022-04-28 01:32:53,294 INFO L290 TraceCheckUtils]: 24: Hoare triple {615#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {615#false} is VALID [2022-04-28 01:32:53,294 INFO L290 TraceCheckUtils]: 23: Hoare triple {615#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {615#false} is VALID [2022-04-28 01:32:53,294 INFO L272 TraceCheckUtils]: 22: Hoare triple {615#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {615#false} is VALID [2022-04-28 01:32:53,294 INFO L290 TraceCheckUtils]: 21: Hoare triple {709#(< |main_#t~post5| 5)} [78] L28-1-->L28-4: Formula: (not (< |v_main_#t~post5_3| 5)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {615#false} is VALID [2022-04-28 01:32:53,295 INFO L290 TraceCheckUtils]: 20: Hoare triple {713#(< ~counter~0 5)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {709#(< |main_#t~post5| 5)} is VALID [2022-04-28 01:32:53,295 INFO L290 TraceCheckUtils]: 19: Hoare triple {713#(< ~counter~0 5)} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {713#(< ~counter~0 5)} is VALID [2022-04-28 01:32:53,297 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {614#true} {713#(< ~counter~0 5)} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {713#(< ~counter~0 5)} is VALID [2022-04-28 01:32:53,297 INFO L290 TraceCheckUtils]: 17: Hoare triple {614#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-28 01:32:53,297 INFO L290 TraceCheckUtils]: 16: Hoare triple {614#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-28 01:32:53,297 INFO L290 TraceCheckUtils]: 15: Hoare triple {614#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {614#true} is VALID [2022-04-28 01:32:53,298 INFO L272 TraceCheckUtils]: 14: Hoare triple {713#(< ~counter~0 5)} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {614#true} is VALID [2022-04-28 01:32:53,298 INFO L290 TraceCheckUtils]: 13: Hoare triple {713#(< ~counter~0 5)} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {713#(< ~counter~0 5)} is VALID [2022-04-28 01:32:53,300 INFO L290 TraceCheckUtils]: 12: Hoare triple {738#(< ~counter~0 4)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {713#(< ~counter~0 5)} is VALID [2022-04-28 01:32:53,300 INFO L290 TraceCheckUtils]: 11: Hoare triple {738#(< ~counter~0 4)} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {738#(< ~counter~0 4)} is VALID [2022-04-28 01:32:53,301 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {614#true} {738#(< ~counter~0 4)} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {738#(< ~counter~0 4)} is VALID [2022-04-28 01:32:53,301 INFO L290 TraceCheckUtils]: 9: Hoare triple {614#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-28 01:32:53,301 INFO L290 TraceCheckUtils]: 8: Hoare triple {614#true} [76] L7-->L7-2: 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[] {614#true} is VALID [2022-04-28 01:32:53,301 INFO L290 TraceCheckUtils]: 7: Hoare triple {614#true} [72] assume_abort_if_notENTRY-->L7: 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] {614#true} is VALID [2022-04-28 01:32:53,302 INFO L272 TraceCheckUtils]: 6: Hoare triple {738#(< ~counter~0 4)} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {614#true} is VALID [2022-04-28 01:32:53,307 INFO L290 TraceCheckUtils]: 5: Hoare triple {738#(< ~counter~0 4)} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {738#(< ~counter~0 4)} is VALID [2022-04-28 01:32:53,308 INFO L272 TraceCheckUtils]: 4: Hoare triple {738#(< ~counter~0 4)} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {738#(< ~counter~0 4)} is VALID [2022-04-28 01:32:53,308 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {738#(< ~counter~0 4)} {614#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {738#(< ~counter~0 4)} is VALID [2022-04-28 01:32:53,309 INFO L290 TraceCheckUtils]: 2: Hoare triple {738#(< ~counter~0 4)} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {738#(< ~counter~0 4)} is VALID [2022-04-28 01:32:53,310 INFO L290 TraceCheckUtils]: 1: Hoare triple {614#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {738#(< ~counter~0 4)} is VALID [2022-04-28 01:32:53,310 INFO L272 TraceCheckUtils]: 0: Hoare triple {614#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-28 01:32:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:32:53,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:32:53,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639186154] [2022-04-28 01:32:53,311 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:32:53,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041679329] [2022-04-28 01:32:53,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041679329] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 01:32:53,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-28 01:32:53,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-04-28 01:32:53,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679935718] [2022-04-28 01:32:53,311 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-28 01:32:53,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 26 [2022-04-28 01:32:53,312 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:32:53,312 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:32:53,349 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:53,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-28 01:32:53,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:32:53,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-28 01:32:53,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-04-28 01:32:53,350 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:32:53,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:53,534 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2022-04-28 01:32:53,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-28 01:32:53,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 26 [2022-04-28 01:32:53,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:32:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:32:53,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 76 transitions. [2022-04-28 01:32:53,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:32:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 76 transitions. [2022-04-28 01:32:53,539 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 10 states and 76 transitions. [2022-04-28 01:32:53,610 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:53,612 INFO L225 Difference]: With dead ends: 66 [2022-04-28 01:32:53,612 INFO L226 Difference]: Without dead ends: 58 [2022-04-28 01:32:53,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-04-28 01:32:53,613 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 35 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 01:32:53,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 95 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:32:53,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-04-28 01:32:53,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2022-04-28 01:32:53,627 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:32:53,627 INFO L82 GeneralOperation]: Start isEquivalent. First operand 58 states. Second operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-28 01:32:53,627 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-28 01:32:53,628 INFO L87 Difference]: Start difference. First operand 58 states. Second operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-28 01:32:53,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:53,630 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-04-28 01:32:53,630 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-04-28 01:32:53,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:53,630 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:53,631 INFO L74 IsIncluded]: Start isIncluded. First operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 58 states. [2022-04-28 01:32:53,631 INFO L87 Difference]: Start difference. First operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 58 states. [2022-04-28 01:32:53,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:53,633 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-04-28 01:32:53,633 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-04-28 01:32:53,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:53,634 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:53,634 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:32:53,634 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:32:53,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-28 01:32:53,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2022-04-28 01:32:53,636 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 26 [2022-04-28 01:32:53,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:32:53,636 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2022-04-28 01:32:53,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:32:53,636 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2022-04-28 01:32:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-28 01:32:53,637 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:32:53,637 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] [2022-04-28 01:32:53,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-28 01:32:53,855 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 [2022-04-28 01:32:53,856 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:32:53,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:32:53,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1222696968, now seen corresponding path program 1 times [2022-04-28 01:32:53,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:32:53,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248983523] [2022-04-28 01:32:53,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:53,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:32:53,872 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:32:53,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538233009] [2022-04-28 01:32:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:53,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:32:53,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:32:53,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 01:32:53,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-28 01:32:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:53,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-28 01:32:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:53,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:32:54,080 INFO L272 TraceCheckUtils]: 0: Hoare triple {1072#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:54,080 INFO L290 TraceCheckUtils]: 1: Hoare triple {1072#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {1072#true} is VALID [2022-04-28 01:32:54,080 INFO L290 TraceCheckUtils]: 2: Hoare triple {1072#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:54,080 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1072#true} {1072#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:54,080 INFO L272 TraceCheckUtils]: 4: Hoare triple {1072#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:54,081 INFO L290 TraceCheckUtils]: 5: Hoare triple {1072#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {1072#true} is VALID [2022-04-28 01:32:54,081 INFO L272 TraceCheckUtils]: 6: Hoare triple {1072#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1072#true} is VALID [2022-04-28 01:32:54,081 INFO L290 TraceCheckUtils]: 7: Hoare triple {1072#true} [72] assume_abort_if_notENTRY-->L7: 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] {1072#true} is VALID [2022-04-28 01:32:54,081 INFO L290 TraceCheckUtils]: 8: Hoare triple {1072#true} [76] L7-->L7-2: 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[] {1072#true} is VALID [2022-04-28 01:32:54,081 INFO L290 TraceCheckUtils]: 9: Hoare triple {1072#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:54,081 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1072#true} {1072#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1072#true} is VALID [2022-04-28 01:32:54,082 INFO L290 TraceCheckUtils]: 11: Hoare triple {1072#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {1110#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:54,082 INFO L290 TraceCheckUtils]: 12: Hoare triple {1110#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1110#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:54,083 INFO L290 TraceCheckUtils]: 13: Hoare triple {1110#(and (= main_~x~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1110#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:54,083 INFO L272 TraceCheckUtils]: 14: Hoare triple {1110#(and (= main_~x~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1072#true} is VALID [2022-04-28 01:32:54,083 INFO L290 TraceCheckUtils]: 15: Hoare triple {1072#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1072#true} is VALID [2022-04-28 01:32:54,083 INFO L290 TraceCheckUtils]: 16: Hoare triple {1072#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:54,084 INFO L290 TraceCheckUtils]: 17: Hoare triple {1072#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:54,096 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1072#true} {1110#(and (= main_~x~0 0) (= main_~y~0 0))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1110#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:54,096 INFO L290 TraceCheckUtils]: 19: Hoare triple {1110#(and (= main_~x~0 0) (= main_~y~0 0))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {1135#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} is VALID [2022-04-28 01:32:54,097 INFO L290 TraceCheckUtils]: 20: Hoare triple {1135#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1135#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} is VALID [2022-04-28 01:32:54,097 INFO L290 TraceCheckUtils]: 21: Hoare triple {1135#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1135#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} is VALID [2022-04-28 01:32:54,098 INFO L272 TraceCheckUtils]: 22: Hoare triple {1135#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1145#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:32:54,098 INFO L290 TraceCheckUtils]: 23: Hoare triple {1145#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1149#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:32:54,098 INFO L290 TraceCheckUtils]: 24: Hoare triple {1149#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {1073#false} is VALID [2022-04-28 01:32:54,099 INFO L290 TraceCheckUtils]: 25: Hoare triple {1073#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1073#false} is VALID [2022-04-28 01:32:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:32:54,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 01:32:54,327 INFO L290 TraceCheckUtils]: 25: Hoare triple {1073#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1073#false} is VALID [2022-04-28 01:32:54,328 INFO L290 TraceCheckUtils]: 24: Hoare triple {1149#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {1073#false} is VALID [2022-04-28 01:32:54,328 INFO L290 TraceCheckUtils]: 23: Hoare triple {1145#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1149#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:32:54,329 INFO L272 TraceCheckUtils]: 22: Hoare triple {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1145#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:32:54,330 INFO L290 TraceCheckUtils]: 21: Hoare triple {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-28 01:32:54,330 INFO L290 TraceCheckUtils]: 20: Hoare triple {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-28 01:32:55,068 INFO L290 TraceCheckUtils]: 19: Hoare triple {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-28 01:32:55,069 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1072#true} {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-28 01:32:55,069 INFO L290 TraceCheckUtils]: 17: Hoare triple {1072#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:55,069 INFO L290 TraceCheckUtils]: 16: Hoare triple {1072#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:55,069 INFO L290 TraceCheckUtils]: 15: Hoare triple {1072#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1072#true} is VALID [2022-04-28 01:32:55,069 INFO L272 TraceCheckUtils]: 14: Hoare triple {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1072#true} is VALID [2022-04-28 01:32:55,070 INFO L290 TraceCheckUtils]: 13: Hoare triple {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-28 01:32:55,071 INFO L290 TraceCheckUtils]: 12: Hoare triple {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-28 01:32:55,072 INFO L290 TraceCheckUtils]: 11: Hoare triple {1072#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {1165#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-28 01:32:55,072 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1072#true} {1072#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1072#true} is VALID [2022-04-28 01:32:55,072 INFO L290 TraceCheckUtils]: 9: Hoare triple {1072#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:55,072 INFO L290 TraceCheckUtils]: 8: Hoare triple {1072#true} [76] L7-->L7-2: 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[] {1072#true} is VALID [2022-04-28 01:32:55,072 INFO L290 TraceCheckUtils]: 7: Hoare triple {1072#true} [72] assume_abort_if_notENTRY-->L7: 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] {1072#true} is VALID [2022-04-28 01:32:55,072 INFO L272 TraceCheckUtils]: 6: Hoare triple {1072#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1072#true} is VALID [2022-04-28 01:32:55,073 INFO L290 TraceCheckUtils]: 5: Hoare triple {1072#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {1072#true} is VALID [2022-04-28 01:32:55,073 INFO L272 TraceCheckUtils]: 4: Hoare triple {1072#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:55,073 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1072#true} {1072#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:55,073 INFO L290 TraceCheckUtils]: 2: Hoare triple {1072#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:55,073 INFO L290 TraceCheckUtils]: 1: Hoare triple {1072#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {1072#true} is VALID [2022-04-28 01:32:55,073 INFO L272 TraceCheckUtils]: 0: Hoare triple {1072#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#true} is VALID [2022-04-28 01:32:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-28 01:32:55,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:32:55,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248983523] [2022-04-28 01:32:55,074 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:32:55,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538233009] [2022-04-28 01:32:55,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538233009] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-28 01:32:55,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-28 01:32:55,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-04-28 01:32:55,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415078714] [2022-04-28 01:32:55,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:32:55,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-04-28 01:32:55,075 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:32:55,075 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 01:32:55,669 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:55,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 01:32:55,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:32:55,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 01:32:55,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-28 01:32:55,670 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 01:32:55,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:55,778 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2022-04-28 01:32:55,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-28 01:32:55,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-04-28 01:32:55,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:32:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 01:32:55,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2022-04-28 01:32:55,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 01:32:55,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2022-04-28 01:32:55,780 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 32 transitions. [2022-04-28 01:32:58,516 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 31 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:58,517 INFO L225 Difference]: With dead ends: 68 [2022-04-28 01:32:58,517 INFO L226 Difference]: Without dead ends: 60 [2022-04-28 01:32:58,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-28 01:32:58,518 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 01:32:58,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 73 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:32:58,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-04-28 01:32:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2022-04-28 01:32:58,536 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:32:58,536 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states. Second operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-28 01:32:58,536 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-28 01:32:58,537 INFO L87 Difference]: Start difference. First operand 60 states. Second operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-28 01:32:58,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:58,538 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2022-04-28 01:32:58,538 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-04-28 01:32:58,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:58,539 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:58,539 INFO L74 IsIncluded]: Start isIncluded. First operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) Second operand 60 states. [2022-04-28 01:32:58,539 INFO L87 Difference]: Start difference. First operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) Second operand 60 states. [2022-04-28 01:32:58,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:58,541 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2022-04-28 01:32:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-04-28 01:32:58,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:58,541 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:58,541 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:32:58,541 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:32:58,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-28 01:32:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2022-04-28 01:32:58,543 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 26 [2022-04-28 01:32:58,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:32:58,543 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2022-04-28 01:32:58,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 01:32:58,543 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-04-28 01:32:58,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-04-28 01:32:58,544 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:32:58,544 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:32:58,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-28 01:32:58,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:32:58,748 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:32:58,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:32:58,749 INFO L85 PathProgramCache]: Analyzing trace with hash 96926796, now seen corresponding path program 1 times [2022-04-28 01:32:58,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:32:58,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945743129] [2022-04-28 01:32:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:58,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:32:58,760 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:32:58,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163178181] [2022-04-28 01:32:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:58,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:32:58,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:32:58,761 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 01:32:58,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-28 01:32:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:58,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2022-04-28 01:32:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:58,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:32:59,091 INFO L272 TraceCheckUtils]: 0: Hoare triple {1530#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,092 INFO L290 TraceCheckUtils]: 1: Hoare triple {1530#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {1530#true} is VALID [2022-04-28 01:32:59,092 INFO L290 TraceCheckUtils]: 2: Hoare triple {1530#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,092 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1530#true} {1530#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,092 INFO L272 TraceCheckUtils]: 4: Hoare triple {1530#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,092 INFO L290 TraceCheckUtils]: 5: Hoare triple {1530#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {1530#true} is VALID [2022-04-28 01:32:59,092 INFO L272 TraceCheckUtils]: 6: Hoare triple {1530#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1530#true} is VALID [2022-04-28 01:32:59,092 INFO L290 TraceCheckUtils]: 7: Hoare triple {1530#true} [72] assume_abort_if_notENTRY-->L7: 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] {1530#true} is VALID [2022-04-28 01:32:59,093 INFO L290 TraceCheckUtils]: 8: Hoare triple {1530#true} [76] L7-->L7-2: 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[] {1530#true} is VALID [2022-04-28 01:32:59,093 INFO L290 TraceCheckUtils]: 9: Hoare triple {1530#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,093 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1530#true} {1530#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1530#true} is VALID [2022-04-28 01:32:59,094 INFO L290 TraceCheckUtils]: 11: Hoare triple {1530#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {1568#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:59,094 INFO L290 TraceCheckUtils]: 12: Hoare triple {1568#(and (= main_~c~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1568#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:59,096 INFO L290 TraceCheckUtils]: 13: Hoare triple {1568#(and (= main_~c~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1568#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:59,096 INFO L272 TraceCheckUtils]: 14: Hoare triple {1568#(and (= main_~c~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1530#true} is VALID [2022-04-28 01:32:59,096 INFO L290 TraceCheckUtils]: 15: Hoare triple {1530#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1530#true} is VALID [2022-04-28 01:32:59,096 INFO L290 TraceCheckUtils]: 16: Hoare triple {1530#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,097 INFO L290 TraceCheckUtils]: 17: Hoare triple {1530#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,099 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1530#true} {1568#(and (= main_~c~0 0) (= main_~y~0 0))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1568#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:32:59,099 INFO L290 TraceCheckUtils]: 19: Hoare triple {1568#(and (= main_~c~0 0) (= main_~y~0 0))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {1593#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-28 01:32:59,100 INFO L290 TraceCheckUtils]: 20: Hoare triple {1593#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1593#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-28 01:32:59,102 INFO L290 TraceCheckUtils]: 21: Hoare triple {1593#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1593#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-28 01:32:59,102 INFO L272 TraceCheckUtils]: 22: Hoare triple {1593#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1530#true} is VALID [2022-04-28 01:32:59,102 INFO L290 TraceCheckUtils]: 23: Hoare triple {1530#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1530#true} is VALID [2022-04-28 01:32:59,102 INFO L290 TraceCheckUtils]: 24: Hoare triple {1530#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,102 INFO L290 TraceCheckUtils]: 25: Hoare triple {1530#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,103 INFO L284 TraceCheckUtils]: 26: Hoare quadruple {1530#true} {1593#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1593#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-28 01:32:59,103 INFO L290 TraceCheckUtils]: 27: Hoare triple {1593#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [87] L29-1-->L28-4: Formula: (not (< v_main_~c~0_3 v_main_~k~0_6)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_6} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[] {1618#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} is VALID [2022-04-28 01:32:59,104 INFO L272 TraceCheckUtils]: 28: Hoare triple {1618#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1530#true} is VALID [2022-04-28 01:32:59,104 INFO L290 TraceCheckUtils]: 29: Hoare triple {1530#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1530#true} is VALID [2022-04-28 01:32:59,104 INFO L290 TraceCheckUtils]: 30: Hoare triple {1530#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,104 INFO L290 TraceCheckUtils]: 31: Hoare triple {1530#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1530#true} is VALID [2022-04-28 01:32:59,104 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {1530#true} {1618#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} [97] __VERIFIER_assertEXIT-->L39: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1618#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} is VALID [2022-04-28 01:32:59,105 INFO L272 TraceCheckUtils]: 33: Hoare triple {1618#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} [81] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_3| (ite (= (* v_main_~y~0_10 v_main_~y~0_10) (* v_main_~y~0_10 v_main_~k~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_10, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {1637#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:32:59,105 INFO L290 TraceCheckUtils]: 34: Hoare triple {1637#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1641#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:32:59,105 INFO L290 TraceCheckUtils]: 35: Hoare triple {1641#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {1531#false} is VALID [2022-04-28 01:32:59,106 INFO L290 TraceCheckUtils]: 36: Hoare triple {1531#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1531#false} is VALID [2022-04-28 01:32:59,106 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-04-28 01:32:59,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 01:32:59,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:32:59,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945743129] [2022-04-28 01:32:59,365 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:32:59,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163178181] [2022-04-28 01:32:59,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163178181] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-28 01:32:59,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-04-28 01:32:59,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2022-04-28 01:32:59,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493855849] [2022-04-28 01:32:59,366 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-04-28 01:32:59,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2022-04-28 01:32:59,366 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:32:59,367 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-28 01:32:59,389 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:59,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-28 01:32:59,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:32:59,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-28 01:32:59,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-04-28 01:32:59,390 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-28 01:32:59,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:59,575 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2022-04-28 01:32:59,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-28 01:32:59,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2022-04-28 01:32:59,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:32:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-28 01:32:59,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 44 transitions. [2022-04-28 01:32:59,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-28 01:32:59,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 44 transitions. [2022-04-28 01:32:59,577 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 44 transitions. [2022-04-28 01:32:59,602 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:32:59,604 INFO L225 Difference]: With dead ends: 59 [2022-04-28 01:32:59,604 INFO L226 Difference]: Without dead ends: 53 [2022-04-28 01:32:59,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-04-28 01:32:59,604 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 01:32:59,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 141 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:32:59,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-04-28 01:32:59,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-04-28 01:32:59,620 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:32:59,621 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-28 01:32:59,621 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-28 01:32:59,621 INFO L87 Difference]: Start difference. First operand 53 states. Second operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-28 01:32:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:59,622 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2022-04-28 01:32:59,623 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-04-28 01:32:59,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:59,623 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:59,623 INFO L74 IsIncluded]: Start isIncluded. First operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand 53 states. [2022-04-28 01:32:59,623 INFO L87 Difference]: Start difference. First operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand 53 states. [2022-04-28 01:32:59,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:32:59,625 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2022-04-28 01:32:59,625 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-04-28 01:32:59,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:32:59,625 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:32:59,625 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:32:59,625 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:32:59,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-28 01:32:59,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-04-28 01:32:59,627 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 37 [2022-04-28 01:32:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:32:59,627 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-04-28 01:32:59,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-28 01:32:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-04-28 01:32:59,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-04-28 01:32:59,628 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:32:59,628 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:32:59,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-28 01:32:59,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:32:59,842 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:32:59,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:32:59,843 INFO L85 PathProgramCache]: Analyzing trace with hash -678596118, now seen corresponding path program 2 times [2022-04-28 01:32:59,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:32:59,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582131519] [2022-04-28 01:32:59,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:32:59,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:32:59,853 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:32:59,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [690696674] [2022-04-28 01:32:59,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-28 01:32:59,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:32:59,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:32:59,854 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 01:32:59,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-28 01:32:59,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-28 01:32:59,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-28 01:32:59,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-28 01:32:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:32:59,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:33:00,205 INFO L272 TraceCheckUtils]: 0: Hoare triple {1978#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L290 TraceCheckUtils]: 1: Hoare triple {1978#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (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_3, #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] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L290 TraceCheckUtils]: 2: Hoare triple {1978#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1978#true} {1978#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L272 TraceCheckUtils]: 4: Hoare triple {1978#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L290 TraceCheckUtils]: 5: Hoare triple {1978#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L272 TraceCheckUtils]: 6: Hoare triple {1978#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L290 TraceCheckUtils]: 7: Hoare triple {1978#true} [72] assume_abort_if_notENTRY-->L7: 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] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L290 TraceCheckUtils]: 8: Hoare triple {1978#true} [76] L7-->L7-2: 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[] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L290 TraceCheckUtils]: 9: Hoare triple {1978#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,206 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1978#true} {1978#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1978#true} is VALID [2022-04-28 01:33:00,207 INFO L290 TraceCheckUtils]: 11: Hoare triple {1978#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {2016#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:33:00,207 INFO L290 TraceCheckUtils]: 12: Hoare triple {2016#(and (= main_~c~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {2016#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:33:00,207 INFO L290 TraceCheckUtils]: 13: Hoare triple {2016#(and (= main_~c~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {2016#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:33:00,208 INFO L272 TraceCheckUtils]: 14: Hoare triple {2016#(and (= main_~c~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1978#true} is VALID [2022-04-28 01:33:00,208 INFO L290 TraceCheckUtils]: 15: Hoare triple {1978#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1978#true} is VALID [2022-04-28 01:33:00,208 INFO L290 TraceCheckUtils]: 16: Hoare triple {1978#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,208 INFO L290 TraceCheckUtils]: 17: Hoare triple {1978#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,208 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1978#true} {2016#(and (= main_~c~0 0) (= main_~y~0 0))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {2016#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:33:00,209 INFO L290 TraceCheckUtils]: 19: Hoare triple {2016#(and (= main_~c~0 0) (= main_~y~0 0))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {2041#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} is VALID [2022-04-28 01:33:00,209 INFO L290 TraceCheckUtils]: 20: Hoare triple {2041#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {2041#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} is VALID [2022-04-28 01:33:00,209 INFO L290 TraceCheckUtils]: 21: Hoare triple {2041#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {2041#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} is VALID [2022-04-28 01:33:00,210 INFO L272 TraceCheckUtils]: 22: Hoare triple {2041#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1978#true} is VALID [2022-04-28 01:33:00,210 INFO L290 TraceCheckUtils]: 23: Hoare triple {1978#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1978#true} is VALID [2022-04-28 01:33:00,210 INFO L290 TraceCheckUtils]: 24: Hoare triple {1978#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,210 INFO L290 TraceCheckUtils]: 25: Hoare triple {1978#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,211 INFO L284 TraceCheckUtils]: 26: Hoare quadruple {1978#true} {2041#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {2041#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} is VALID [2022-04-28 01:33:00,213 INFO L290 TraceCheckUtils]: 27: Hoare triple {2041#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {2066#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} is VALID [2022-04-28 01:33:00,213 INFO L290 TraceCheckUtils]: 28: Hoare triple {2066#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {2066#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} is VALID [2022-04-28 01:33:00,213 INFO L290 TraceCheckUtils]: 29: Hoare triple {2066#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {2066#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} is VALID [2022-04-28 01:33:00,214 INFO L272 TraceCheckUtils]: 30: Hoare triple {2066#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1978#true} is VALID [2022-04-28 01:33:00,214 INFO L290 TraceCheckUtils]: 31: Hoare triple {1978#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1978#true} is VALID [2022-04-28 01:33:00,214 INFO L290 TraceCheckUtils]: 32: Hoare triple {1978#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,214 INFO L290 TraceCheckUtils]: 33: Hoare triple {1978#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,214 INFO L284 TraceCheckUtils]: 34: Hoare quadruple {1978#true} {2066#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {2066#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} is VALID [2022-04-28 01:33:00,215 INFO L290 TraceCheckUtils]: 35: Hoare triple {2066#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [87] L29-1-->L28-4: Formula: (not (< v_main_~c~0_3 v_main_~k~0_6)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_6} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[] {2091#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} is VALID [2022-04-28 01:33:00,215 INFO L272 TraceCheckUtils]: 36: Hoare triple {2091#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1978#true} is VALID [2022-04-28 01:33:00,215 INFO L290 TraceCheckUtils]: 37: Hoare triple {1978#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1978#true} is VALID [2022-04-28 01:33:00,215 INFO L290 TraceCheckUtils]: 38: Hoare triple {1978#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,215 INFO L290 TraceCheckUtils]: 39: Hoare triple {1978#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1978#true} is VALID [2022-04-28 01:33:00,216 INFO L284 TraceCheckUtils]: 40: Hoare quadruple {1978#true} {2091#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} [97] __VERIFIER_assertEXIT-->L39: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {2091#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} is VALID [2022-04-28 01:33:00,216 INFO L272 TraceCheckUtils]: 41: Hoare triple {2091#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} [81] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_3| (ite (= (* v_main_~y~0_10 v_main_~y~0_10) (* v_main_~y~0_10 v_main_~k~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_10, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {2110#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:33:00,221 INFO L290 TraceCheckUtils]: 42: Hoare triple {2110#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {2114#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:33:00,221 INFO L290 TraceCheckUtils]: 43: Hoare triple {2114#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {1979#false} is VALID [2022-04-28 01:33:00,221 INFO L290 TraceCheckUtils]: 44: Hoare triple {1979#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1979#false} is VALID [2022-04-28 01:33:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-28 01:33:00,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 01:33:00,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:33:00,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582131519] [2022-04-28 01:33:00,452 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:33:00,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690696674] [2022-04-28 01:33:00,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690696674] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-28 01:33:00,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-04-28 01:33:00,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-04-28 01:33:00,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139798620] [2022-04-28 01:33:00,452 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-04-28 01:33:00,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 45 [2022-04-28 01:33:00,453 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:33:00,453 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:33:00,476 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:33:00,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-28 01:33:00,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:33:00,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-28 01:33:00,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-04-28 01:33:00,477 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:33:00,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:33:00,743 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2022-04-28 01:33:00,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-28 01:33:00,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 45 [2022-04-28 01:33:00,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:33:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:33:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 49 transitions. [2022-04-28 01:33:00,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:33:00,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 49 transitions. [2022-04-28 01:33:00,745 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 49 transitions. [2022-04-28 01:33:00,781 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:33:00,782 INFO L225 Difference]: With dead ends: 58 [2022-04-28 01:33:00,782 INFO L226 Difference]: Without dead ends: 52 [2022-04-28 01:33:00,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-04-28 01:33:00,783 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-28 01:33:00,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 179 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-28 01:33:00,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-04-28 01:33:00,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-04-28 01:33:00,809 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:33:00,810 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:33:00,810 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:33:00,810 INFO L87 Difference]: Start difference. First operand 52 states. Second operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:33:00,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:33:00,813 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2022-04-28 01:33:00,813 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-04-28 01:33:00,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:33:00,813 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:33:00,815 INFO L74 IsIncluded]: Start isIncluded. First operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 52 states. [2022-04-28 01:33:00,815 INFO L87 Difference]: Start difference. First operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 52 states. [2022-04-28 01:33:00,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:33:00,816 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2022-04-28 01:33:00,816 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-04-28 01:33:00,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:33:00,816 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:33:00,817 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:33:00,817 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:33:00,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:33:00,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2022-04-28 01:33:00,818 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 45 [2022-04-28 01:33:00,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:33:00,818 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2022-04-28 01:33:00,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-28 01:33:00,818 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-04-28 01:33:00,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-04-28 01:33:00,820 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:33:00,820 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:33:00,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-28 01:33:01,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:33:01,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:33:01,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:33:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1280010632, now seen corresponding path program 3 times [2022-04-28 01:33:01,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:33:01,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895496730] [2022-04-28 01:33:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:33:01,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:33:01,036 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:33:01,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [681680977] [2022-04-28 01:33:01,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-28 01:33:01,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:33:01,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:33:01,038 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 01:33:01,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process