/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/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 18:48:51,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 18:48:51,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 18:48:51,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-07 18:48:51,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-07 18:48:51,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-07 18:48:51,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-07 18:48:51,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-07 18:48:51,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-07 18:48:51,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-07 18:48:51,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-07 18:48:51,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-07 18:48:51,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 18:48:51,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 18:48:51,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 18:48:51,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 18:48:51,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 18:48:51,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 18:48:51,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 18:48:51,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 18:48:51,462 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 18:48:51,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 18:48:51,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 18:48:51,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 18:48:51,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 18:48:51,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-07 18:48:51,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-07 18:48:51,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-07 18:48:51,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-07 18:48:51,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-07 18:48:51,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-07 18:48:51,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-07 18:48:51,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-07 18:48:51,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-07 18:48:51,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-07 18:48:51,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-07 18:48:51,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-07 18:48:51,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-07 18:48:51,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-07 18:48:51,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 18:48:51,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 18:48:51,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 18:48:51,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-07 18:48:51,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 18:48:51,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 18:48:51,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 18:48:51,492 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-07 18:48:51,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 18:48:51,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-07 18:48:51,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 18:48:51,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 18:48:51,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 18:48:51,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 18:48:51,493 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-07 18:48:51,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 18:48:51,494 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 18:48:51,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 18:48:51,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 18:48:51,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 18:48:51,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 18:48:51,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 18:48:51,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 18:48:51,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 18:48:51,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 18:48:51,495 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-07 18:48:51,495 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 18:48:51,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 18:48:51,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 18:48:51,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 18:48:51,701 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 18:48:51,702 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 18:48:51,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound2.i [2022-04-07 18:48:51,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc717c7c/206b1b2c49b8472c8c4092ecd4374416/FLAGe54938328 [2022-04-07 18:48:52,138 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 18:48:52,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound2.i [2022-04-07 18:48:52,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc717c7c/206b1b2c49b8472c8c4092ecd4374416/FLAGe54938328 [2022-04-07 18:48:52,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc717c7c/206b1b2c49b8472c8c4092ecd4374416 [2022-04-07 18:48:52,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 18:48:52,561 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-07 18:48:52,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 18:48:52,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 18:48:52,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 18:48:52,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ccff14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52, skipping insertion in model container [2022-04-07 18:48:52,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 18:48:52,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 18:48:52,715 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/divbin_unwindbound2.i[950,963] [2022-04-07 18:48:52,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 18:48:52,731 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 18:48:52,739 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/divbin_unwindbound2.i[950,963] [2022-04-07 18:48:52,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 18:48:52,752 INFO L208 MainTranslator]: Completed translation [2022-04-07 18:48:52,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52 WrapperNode [2022-04-07 18:48:52,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 18:48:52,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 18:48:52,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 18:48:52,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 18:48:52,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 18:48:52,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 18:48:52,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 18:48:52,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 18:48:52,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52" (1/1) ... [2022-04-07 18:48:52,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 18:48:52,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 18:48:52,807 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) [2022-04-07 18:48:52,809 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 [2022-04-07 18:48:52,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 18:48:52,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 18:48:52,839 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 18:48:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-07 18:48:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-07 18:48:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 18:48:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 18:48:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 18:48:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-07 18:48:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-07 18:48:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 18:48:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 18:48:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-07 18:48:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-07 18:48:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-07 18:48:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 18:48:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 18:48:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 18:48:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 18:48:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 18:48:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 18:48:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 18:48:52,908 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 18:48:52,910 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 18:48:53,007 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 18:48:53,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 18:48:53,011 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-07 18:48:53,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 06:48:53 BoogieIcfgContainer [2022-04-07 18:48:53,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 18:48:53,013 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-07 18:48:53,013 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-07 18:48:53,014 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-07 18:48:53,016 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 06:48:53" (1/1) ... [2022-04-07 18:48:53,017 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-07 18:48:53,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 06:48:53 BasicIcfg [2022-04-07 18:48:53,034 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-07 18:48:53,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 18:48:53,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 18:48:53,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 18:48:53,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 06:48:52" (1/4) ... [2022-04-07 18:48:53,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5791aad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 06:48:53, skipping insertion in model container [2022-04-07 18:48:53,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 06:48:52" (2/4) ... [2022-04-07 18:48:53,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5791aad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 06:48:53, skipping insertion in model container [2022-04-07 18:48:53,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 06:48:53" (3/4) ... [2022-04-07 18:48:53,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5791aad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 06:48:53, skipping insertion in model container [2022-04-07 18:48:53,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 06:48:53" (4/4) ... [2022-04-07 18:48:53,039 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound2.iJordan [2022-04-07 18:48:53,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-07 18:48:53,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 18:48:53,065 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 18:48:53,070 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2022-04-07 18:48:53,070 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 18:48:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 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) [2022-04-07 18:48:53,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-07 18:48:53,100 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 18:48:53,101 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 18:48:53,101 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 18:48:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 18:48:53,105 INFO L85 PathProgramCache]: Analyzing trace with hash 35225450, now seen corresponding path program 1 times [2022-04-07 18:48:53,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 18:48:53,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635509873] [2022-04-07 18:48:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:48:53,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 18:48:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 18:48:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:53,334 INFO L290 TraceCheckUtils]: 0: Hoare triple {49#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {36#true} is VALID [2022-04-07 18:48:53,335 INFO L290 TraceCheckUtils]: 1: Hoare triple {36#true} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {36#true} is VALID [2022-04-07 18:48:53,335 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {36#true} {36#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {36#true} is VALID [2022-04-07 18:48:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-07 18:48:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:53,357 INFO L290 TraceCheckUtils]: 0: Hoare triple {36#true} [100] assume_abort_if_notENTRY-->L16: 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] {36#true} is VALID [2022-04-07 18:48:53,358 INFO L290 TraceCheckUtils]: 1: Hoare triple {36#true} [102] L16-->L16-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,358 INFO L290 TraceCheckUtils]: 2: Hoare triple {37#false} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,358 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {37#false} {36#true} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {37#false} is VALID [2022-04-07 18:48:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-07 18:48:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:53,369 INFO L290 TraceCheckUtils]: 0: Hoare triple {36#true} [100] assume_abort_if_notENTRY-->L16: 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] {36#true} is VALID [2022-04-07 18:48:53,369 INFO L290 TraceCheckUtils]: 1: Hoare triple {36#true} [102] L16-->L16-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,369 INFO L290 TraceCheckUtils]: 2: Hoare triple {37#false} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,370 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {37#false} {37#false} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {37#false} is VALID [2022-04-07 18:48:53,371 INFO L272 TraceCheckUtils]: 0: Hoare triple {36#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {49#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 18:48:53,371 INFO L290 TraceCheckUtils]: 1: Hoare triple {49#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {36#true} is VALID [2022-04-07 18:48:53,371 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#true} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {36#true} is VALID [2022-04-07 18:48:53,371 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {36#true} {36#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {36#true} is VALID [2022-04-07 18:48:53,371 INFO L272 TraceCheckUtils]: 4: Hoare triple {36#true} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {36#true} is VALID [2022-04-07 18:48:53,372 INFO L290 TraceCheckUtils]: 5: Hoare triple {36#true} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {36#true} is VALID [2022-04-07 18:48:53,372 INFO L272 TraceCheckUtils]: 6: Hoare triple {36#true} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {36#true} is VALID [2022-04-07 18:48:53,372 INFO L290 TraceCheckUtils]: 7: Hoare triple {36#true} [100] assume_abort_if_notENTRY-->L16: 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] {36#true} is VALID [2022-04-07 18:48:53,372 INFO L290 TraceCheckUtils]: 8: Hoare triple {36#true} [102] L16-->L16-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,373 INFO L290 TraceCheckUtils]: 9: Hoare triple {37#false} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,373 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {37#false} {36#true} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {37#false} is VALID [2022-04-07 18:48:53,373 INFO L272 TraceCheckUtils]: 11: Hoare triple {37#false} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {36#true} is VALID [2022-04-07 18:48:53,373 INFO L290 TraceCheckUtils]: 12: Hoare triple {36#true} [100] assume_abort_if_notENTRY-->L16: 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] {36#true} is VALID [2022-04-07 18:48:53,374 INFO L290 TraceCheckUtils]: 13: Hoare triple {36#true} [102] L16-->L16-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,374 INFO L290 TraceCheckUtils]: 14: Hoare triple {37#false} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,374 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {37#false} {37#false} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {37#false} is VALID [2022-04-07 18:48:53,374 INFO L290 TraceCheckUtils]: 16: Hoare triple {37#false} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {37#false} is VALID [2022-04-07 18:48:53,374 INFO L290 TraceCheckUtils]: 17: Hoare triple {37#false} [104] L36-3-->L45-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,375 INFO L290 TraceCheckUtils]: 18: Hoare triple {37#false} [107] L45-2-->L40-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,375 INFO L272 TraceCheckUtils]: 19: Hoare triple {37#false} [111] L40-2-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (mod v_main_~A~0_8 4294967296) (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_8, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {37#false} is VALID [2022-04-07 18:48:53,375 INFO L290 TraceCheckUtils]: 20: Hoare triple {37#false} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {37#false} is VALID [2022-04-07 18:48:53,375 INFO L290 TraceCheckUtils]: 21: Hoare triple {37#false} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,375 INFO L290 TraceCheckUtils]: 22: Hoare triple {37#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {37#false} is VALID [2022-04-07 18:48:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 18:48:53,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 18:48:53,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635509873] [2022-04-07 18:48:53,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635509873] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 18:48:53,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 18:48:53,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 18:48:53,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013708767] [2022-04-07 18:48:53,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 18:48:53,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-07 18:48:53,383 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 18:48:53,385 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:53,416 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:48:53,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 18:48:53,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 18:48:53,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 18:48:53,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 18:48:53,446 INFO L87 Difference]: Start difference. First operand has 33 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 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 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:53,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:48:53,567 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-04-07 18:48:53,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 18:48:53,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-07 18:48:53,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 18:48:53,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:53,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2022-04-07 18:48:53,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2022-04-07 18:48:53,584 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 45 transitions. [2022-04-07 18:48:53,632 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:48:53,639 INFO L225 Difference]: With dead ends: 34 [2022-04-07 18:48:53,639 INFO L226 Difference]: Without dead ends: 29 [2022-04-07 18:48:53,645 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 18:48:53,650 INFO L913 BasicCegarLoop]: 36 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 18:48:53,651 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 40 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 18:48:53,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-04-07 18:48:53,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2022-04-07 18:48:53,669 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 18:48:53,670 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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) [2022-04-07 18:48:53,671 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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) [2022-04-07 18:48:53,671 INFO L87 Difference]: Start difference. First operand 29 states. Second operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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) [2022-04-07 18:48:53,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:48:53,674 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2022-04-07 18:48:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-04-07 18:48:53,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:48:53,675 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:48:53,675 INFO L74 IsIncluded]: Start isIncluded. First operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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 29 states. [2022-04-07 18:48:53,676 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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 29 states. [2022-04-07 18:48:53,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:48:53,678 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2022-04-07 18:48:53,678 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-04-07 18:48:53,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:48:53,679 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:48:53,679 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 18:48:53,679 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 18:48:53,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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) [2022-04-07 18:48:53,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-04-07 18:48:53,681 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 23 [2022-04-07 18:48:53,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 18:48:53,682 INFO L478 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-04-07 18:48:53,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:53,682 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-04-07 18:48:53,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-07 18:48:53,683 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 18:48:53,683 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 18:48:53,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 18:48:53,683 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 18:48:53,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 18:48:53,684 INFO L85 PathProgramCache]: Analyzing trace with hash 106385839, now seen corresponding path program 1 times [2022-04-07 18:48:53,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 18:48:53,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623591039] [2022-04-07 18:48:53,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:48:53,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 18:48:53,699 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 18:48:53,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73012125] [2022-04-07 18:48:53,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:48:53,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:48:53,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 18:48:53,701 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) [2022-04-07 18:48:53,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-07 18:48:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:53,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-07 18:48:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:53,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 18:48:53,943 INFO L272 TraceCheckUtils]: 0: Hoare triple {172#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {172#true} is VALID [2022-04-07 18:48:53,944 INFO L290 TraceCheckUtils]: 1: Hoare triple {172#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,945 INFO L290 TraceCheckUtils]: 2: Hoare triple {180#(<= ~counter~0 0)} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,945 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {180#(<= ~counter~0 0)} {172#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,946 INFO L272 TraceCheckUtils]: 4: Hoare triple {180#(<= ~counter~0 0)} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,946 INFO L290 TraceCheckUtils]: 5: Hoare triple {180#(<= ~counter~0 0)} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,947 INFO L272 TraceCheckUtils]: 6: Hoare triple {180#(<= ~counter~0 0)} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,947 INFO L290 TraceCheckUtils]: 7: Hoare triple {180#(<= ~counter~0 0)} [100] assume_abort_if_notENTRY-->L16: 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] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,947 INFO L290 TraceCheckUtils]: 8: Hoare triple {180#(<= ~counter~0 0)} [103] L16-->L16-2: 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[] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,948 INFO L290 TraceCheckUtils]: 9: Hoare triple {180#(<= ~counter~0 0)} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,948 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {180#(<= ~counter~0 0)} {180#(<= ~counter~0 0)} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,949 INFO L272 TraceCheckUtils]: 11: Hoare triple {180#(<= ~counter~0 0)} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,949 INFO L290 TraceCheckUtils]: 12: Hoare triple {180#(<= ~counter~0 0)} [100] assume_abort_if_notENTRY-->L16: 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] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,950 INFO L290 TraceCheckUtils]: 13: Hoare triple {180#(<= ~counter~0 0)} [103] L16-->L16-2: 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[] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,950 INFO L290 TraceCheckUtils]: 14: Hoare triple {180#(<= ~counter~0 0)} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,951 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {180#(<= ~counter~0 0)} {180#(<= ~counter~0 0)} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,951 INFO L290 TraceCheckUtils]: 16: Hoare triple {180#(<= ~counter~0 0)} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {180#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:53,952 INFO L290 TraceCheckUtils]: 17: Hoare triple {180#(<= ~counter~0 0)} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {229#(<= |main_#t~post3| 0)} is VALID [2022-04-07 18:48:53,952 INFO L290 TraceCheckUtils]: 18: Hoare triple {229#(<= |main_#t~post3| 0)} [109] L36-1-->L45-2: Formula: (not (< |v_main_#t~post3_3| 2)) InVars {main_#t~post3=|v_main_#t~post3_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {173#false} is VALID [2022-04-07 18:48:53,952 INFO L290 TraceCheckUtils]: 19: Hoare triple {173#false} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {173#false} is VALID [2022-04-07 18:48:53,953 INFO L290 TraceCheckUtils]: 20: Hoare triple {173#false} [112] L40-->L40-2: Formula: (not (< |v_main_#t~post4_3| 2)) InVars {main_#t~post4=|v_main_#t~post4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {173#false} is VALID [2022-04-07 18:48:53,953 INFO L272 TraceCheckUtils]: 21: Hoare triple {173#false} [111] L40-2-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (mod v_main_~A~0_8 4294967296) (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_8, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {173#false} is VALID [2022-04-07 18:48:53,953 INFO L290 TraceCheckUtils]: 22: Hoare triple {173#false} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {173#false} is VALID [2022-04-07 18:48:53,953 INFO L290 TraceCheckUtils]: 23: Hoare triple {173#false} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {173#false} is VALID [2022-04-07 18:48:53,953 INFO L290 TraceCheckUtils]: 24: Hoare triple {173#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {173#false} is VALID [2022-04-07 18:48:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 18:48:53,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 18:48:53,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 18:48:53,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623591039] [2022-04-07 18:48:53,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 18:48:53,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73012125] [2022-04-07 18:48:53,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73012125] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 18:48:53,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 18:48:53,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 18:48:53,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138089953] [2022-04-07 18:48:53,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 18:48:53,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-04-07 18:48:53,956 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 18:48:53,956 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:53,973 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:48:53,973 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 18:48:53,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 18:48:53,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 18:48:53,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 18:48:53,974 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:48:54,020 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2022-04-07 18:48:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 18:48:54,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-04-07 18:48:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 18:48:54,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:54,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-04-07 18:48:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:54,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-04-07 18:48:54,024 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 37 transitions. [2022-04-07 18:48:54,050 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:48:54,051 INFO L225 Difference]: With dead ends: 30 [2022-04-07 18:48:54,051 INFO L226 Difference]: Without dead ends: 30 [2022-04-07 18:48:54,052 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 18:48:54,052 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 18:48:54,053 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 18:48:54,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-04-07 18:48:54,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-04-07 18:48:54,058 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 18:48:54,059 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 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) [2022-04-07 18:48:54,060 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 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) [2022-04-07 18:48:54,060 INFO L87 Difference]: Start difference. First operand 30 states. Second operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 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) [2022-04-07 18:48:54,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:48:54,066 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2022-04-07 18:48:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-04-07 18:48:54,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:48:54,067 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:48:54,068 INFO L74 IsIncluded]: Start isIncluded. First operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 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 30 states. [2022-04-07 18:48:54,068 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 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 30 states. [2022-04-07 18:48:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:48:54,072 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2022-04-07 18:48:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-04-07 18:48:54,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:48:54,074 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:48:54,074 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 18:48:54,074 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 18:48:54,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 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) [2022-04-07 18:48:54,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-04-07 18:48:54,079 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 25 [2022-04-07 18:48:54,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 18:48:54,082 INFO L478 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-04-07 18:48:54,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-04-07 18:48:54,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-07 18:48:54,083 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 18:48:54,083 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 18:48:54,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-07 18:48:54,298 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:48:54,299 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 18:48:54,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 18:48:54,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1662084126, now seen corresponding path program 1 times [2022-04-07 18:48:54,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 18:48:54,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999760033] [2022-04-07 18:48:54,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:48:54,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 18:48:54,326 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 18:48:54,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50190639] [2022-04-07 18:48:54,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:48:54,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:48:54,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 18:48:54,328 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) [2022-04-07 18:48:54,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-07 18:48:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:54,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-07 18:48:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:54,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 18:48:54,551 INFO L272 TraceCheckUtils]: 0: Hoare triple {370#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {370#true} is VALID [2022-04-07 18:48:54,552 INFO L290 TraceCheckUtils]: 1: Hoare triple {370#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,552 INFO L290 TraceCheckUtils]: 2: Hoare triple {378#(<= ~counter~0 0)} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,553 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {378#(<= ~counter~0 0)} {370#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,553 INFO L272 TraceCheckUtils]: 4: Hoare triple {378#(<= ~counter~0 0)} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,554 INFO L290 TraceCheckUtils]: 5: Hoare triple {378#(<= ~counter~0 0)} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,554 INFO L272 TraceCheckUtils]: 6: Hoare triple {378#(<= ~counter~0 0)} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,555 INFO L290 TraceCheckUtils]: 7: Hoare triple {378#(<= ~counter~0 0)} [100] assume_abort_if_notENTRY-->L16: 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] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,555 INFO L290 TraceCheckUtils]: 8: Hoare triple {378#(<= ~counter~0 0)} [103] L16-->L16-2: 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[] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,556 INFO L290 TraceCheckUtils]: 9: Hoare triple {378#(<= ~counter~0 0)} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,556 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {378#(<= ~counter~0 0)} {378#(<= ~counter~0 0)} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,557 INFO L272 TraceCheckUtils]: 11: Hoare triple {378#(<= ~counter~0 0)} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,557 INFO L290 TraceCheckUtils]: 12: Hoare triple {378#(<= ~counter~0 0)} [100] assume_abort_if_notENTRY-->L16: 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] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,557 INFO L290 TraceCheckUtils]: 13: Hoare triple {378#(<= ~counter~0 0)} [103] L16-->L16-2: 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[] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,558 INFO L290 TraceCheckUtils]: 14: Hoare triple {378#(<= ~counter~0 0)} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,558 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {378#(<= ~counter~0 0)} {378#(<= ~counter~0 0)} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,558 INFO L290 TraceCheckUtils]: 16: Hoare triple {378#(<= ~counter~0 0)} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {378#(<= ~counter~0 0)} is VALID [2022-04-07 18:48:54,559 INFO L290 TraceCheckUtils]: 17: Hoare triple {378#(<= ~counter~0 0)} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {427#(<= ~counter~0 1)} is VALID [2022-04-07 18:48:54,560 INFO L290 TraceCheckUtils]: 18: Hoare triple {427#(<= ~counter~0 1)} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {427#(<= ~counter~0 1)} is VALID [2022-04-07 18:48:54,560 INFO L290 TraceCheckUtils]: 19: Hoare triple {427#(<= ~counter~0 1)} [114] L37-->L45-2: Formula: (not (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296))) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[] {427#(<= ~counter~0 1)} is VALID [2022-04-07 18:48:54,561 INFO L290 TraceCheckUtils]: 20: Hoare triple {427#(<= ~counter~0 1)} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {437#(<= |main_#t~post4| 1)} is VALID [2022-04-07 18:48:54,561 INFO L290 TraceCheckUtils]: 21: Hoare triple {437#(<= |main_#t~post4| 1)} [112] L40-->L40-2: Formula: (not (< |v_main_#t~post4_3| 2)) InVars {main_#t~post4=|v_main_#t~post4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {371#false} is VALID [2022-04-07 18:48:54,562 INFO L272 TraceCheckUtils]: 22: Hoare triple {371#false} [111] L40-2-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (mod v_main_~A~0_8 4294967296) (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_8, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {371#false} is VALID [2022-04-07 18:48:54,562 INFO L290 TraceCheckUtils]: 23: Hoare triple {371#false} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {371#false} is VALID [2022-04-07 18:48:54,562 INFO L290 TraceCheckUtils]: 24: Hoare triple {371#false} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {371#false} is VALID [2022-04-07 18:48:54,562 INFO L290 TraceCheckUtils]: 25: Hoare triple {371#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {371#false} is VALID [2022-04-07 18:48:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 18:48:54,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 18:48:54,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 18:48:54,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999760033] [2022-04-07 18:48:54,564 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 18:48:54,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50190639] [2022-04-07 18:48:54,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50190639] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 18:48:54,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 18:48:54,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 18:48:54,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333238023] [2022-04-07 18:48:54,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 18:48:54,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-04-07 18:48:54,565 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 18:48:54,566 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:54,580 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:48:54,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 18:48:54,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 18:48:54,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 18:48:54,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-07 18:48:54,581 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:48:54,658 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2022-04-07 18:48:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 18:48:54,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-04-07 18:48:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 18:48:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:54,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-04-07 18:48:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-04-07 18:48:54,662 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 42 transitions. [2022-04-07 18:48:54,688 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:48:54,689 INFO L225 Difference]: With dead ends: 34 [2022-04-07 18:48:54,689 INFO L226 Difference]: Without dead ends: 34 [2022-04-07 18:48:54,693 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-07 18:48:54,695 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 18:48:54,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 97 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 18:48:54,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-07 18:48:54,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-04-07 18:48:54,702 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 18:48:54,702 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 33 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 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) [2022-04-07 18:48:54,703 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 33 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 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) [2022-04-07 18:48:54,704 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 33 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 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) [2022-04-07 18:48:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:48:54,708 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2022-04-07 18:48:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-04-07 18:48:54,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:48:54,711 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:48:54,712 INFO L74 IsIncluded]: Start isIncluded. First operand has 33 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 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 34 states. [2022-04-07 18:48:54,712 INFO L87 Difference]: Start difference. First operand has 33 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 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 34 states. [2022-04-07 18:48:54,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:48:54,715 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2022-04-07 18:48:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-04-07 18:48:54,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:48:54,716 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:48:54,716 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 18:48:54,716 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 18:48:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 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) [2022-04-07 18:48:54,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2022-04-07 18:48:54,719 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 26 [2022-04-07 18:48:54,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 18:48:54,719 INFO L478 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2022-04-07 18:48:54,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:48:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-04-07 18:48:54,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-07 18:48:54,721 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 18:48:54,721 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 18:48:54,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-07 18:48:54,937 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-07 18:48:54,937 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 18:48:54,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 18:48:54,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1663216184, now seen corresponding path program 1 times [2022-04-07 18:48:54,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 18:48:54,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437129275] [2022-04-07 18:48:54,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:48:54,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 18:48:54,955 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 18:48:54,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84755794] [2022-04-07 18:48:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:48:54,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:48:54,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 18:48:54,962 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) [2022-04-07 18:48:54,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-07 18:48:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:55,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-07 18:48:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:48:55,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 18:48:55,719 INFO L272 TraceCheckUtils]: 0: Hoare triple {587#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:55,719 INFO L290 TraceCheckUtils]: 1: Hoare triple {587#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {587#true} is VALID [2022-04-07 18:48:55,720 INFO L290 TraceCheckUtils]: 2: Hoare triple {587#true} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:55,720 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {587#true} {587#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:55,720 INFO L272 TraceCheckUtils]: 4: Hoare triple {587#true} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:55,720 INFO L290 TraceCheckUtils]: 5: Hoare triple {587#true} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {587#true} is VALID [2022-04-07 18:48:55,720 INFO L272 TraceCheckUtils]: 6: Hoare triple {587#true} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {587#true} is VALID [2022-04-07 18:48:55,720 INFO L290 TraceCheckUtils]: 7: Hoare triple {587#true} [100] assume_abort_if_notENTRY-->L16: 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] {613#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-07 18:48:55,721 INFO L290 TraceCheckUtils]: 8: Hoare triple {613#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [103] L16-->L16-2: 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[] {617#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-07 18:48:55,721 INFO L290 TraceCheckUtils]: 9: Hoare triple {617#(not (= |assume_abort_if_not_#in~cond| 0))} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {617#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-07 18:48:55,722 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {617#(not (= |assume_abort_if_not_#in~cond| 0))} {587#true} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {624#(< (mod main_~B~0 4294967296) 2147483647)} is VALID [2022-04-07 18:48:55,722 INFO L272 TraceCheckUtils]: 11: Hoare triple {624#(< (mod main_~B~0 4294967296) 2147483647)} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {587#true} is VALID [2022-04-07 18:48:55,722 INFO L290 TraceCheckUtils]: 12: Hoare triple {587#true} [100] assume_abort_if_notENTRY-->L16: 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] {587#true} is VALID [2022-04-07 18:48:55,722 INFO L290 TraceCheckUtils]: 13: Hoare triple {587#true} [103] L16-->L16-2: 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[] {587#true} is VALID [2022-04-07 18:48:55,722 INFO L290 TraceCheckUtils]: 14: Hoare triple {587#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:55,723 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {587#true} {624#(< (mod main_~B~0 4294967296) 2147483647)} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {624#(< (mod main_~B~0 4294967296) 2147483647)} is VALID [2022-04-07 18:48:55,723 INFO L290 TraceCheckUtils]: 16: Hoare triple {624#(< (mod main_~B~0 4294967296) 2147483647)} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {643#(and (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} is VALID [2022-04-07 18:48:55,724 INFO L290 TraceCheckUtils]: 17: Hoare triple {643#(and (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {643#(and (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} is VALID [2022-04-07 18:48:55,724 INFO L290 TraceCheckUtils]: 18: Hoare triple {643#(and (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {643#(and (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} is VALID [2022-04-07 18:48:55,725 INFO L290 TraceCheckUtils]: 19: Hoare triple {643#(and (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} [114] L37-->L45-2: Formula: (not (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296))) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[] {653#(and (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} is VALID [2022-04-07 18:48:55,725 INFO L290 TraceCheckUtils]: 20: Hoare triple {653#(and (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {653#(and (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} is VALID [2022-04-07 18:48:55,726 INFO L290 TraceCheckUtils]: 21: Hoare triple {653#(and (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} [113] L40-->L41: Formula: (< |v_main_#t~post4_5| 2) InVars {main_#t~post4=|v_main_#t~post4_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {653#(and (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} is VALID [2022-04-07 18:48:55,726 INFO L272 TraceCheckUtils]: 22: Hoare triple {653#(and (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (= main_~A~0 main_~r~0) (= main_~q~0 0) (< (mod main_~b~0 4294967296) 2147483647))} [118] L41-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_7 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_7, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {663#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 18:48:55,727 INFO L290 TraceCheckUtils]: 23: Hoare triple {663#(<= 1 |__VERIFIER_assert_#in~cond|)} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {667#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 18:48:55,727 INFO L290 TraceCheckUtils]: 24: Hoare triple {667#(<= 1 __VERIFIER_assert_~cond)} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {588#false} is VALID [2022-04-07 18:48:55,727 INFO L290 TraceCheckUtils]: 25: Hoare triple {588#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {588#false} is VALID [2022-04-07 18:48:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-07 18:48:55,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 18:48:56,054 INFO L290 TraceCheckUtils]: 25: Hoare triple {588#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {588#false} is VALID [2022-04-07 18:48:56,054 INFO L290 TraceCheckUtils]: 24: Hoare triple {667#(<= 1 __VERIFIER_assert_~cond)} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {588#false} is VALID [2022-04-07 18:48:56,055 INFO L290 TraceCheckUtils]: 23: Hoare triple {663#(<= 1 |__VERIFIER_assert_#in~cond|)} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {667#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 18:48:56,056 INFO L272 TraceCheckUtils]: 22: Hoare triple {683#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} [118] L41-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_7 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_7, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {663#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 18:48:56,056 INFO L290 TraceCheckUtils]: 21: Hoare triple {683#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} [113] L40-->L41: Formula: (< |v_main_#t~post4_5| 2) InVars {main_#t~post4=|v_main_#t~post4_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {683#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} is VALID [2022-04-07 18:48:56,056 INFO L290 TraceCheckUtils]: 20: Hoare triple {683#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {683#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} is VALID [2022-04-07 18:48:56,057 INFO L290 TraceCheckUtils]: 19: Hoare triple {693#(or (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)) (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296)))} [114] L37-->L45-2: Formula: (not (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296))) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[] {683#(= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))} is VALID [2022-04-07 18:48:56,057 INFO L290 TraceCheckUtils]: 18: Hoare triple {693#(or (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)) (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296)))} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {693#(or (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)) (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296)))} is VALID [2022-04-07 18:48:56,057 INFO L290 TraceCheckUtils]: 17: Hoare triple {693#(or (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)) (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296)))} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {693#(or (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)) (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296)))} is VALID [2022-04-07 18:48:56,058 INFO L290 TraceCheckUtils]: 16: Hoare triple {587#true} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {693#(or (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)) (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296)))} is VALID [2022-04-07 18:48:56,058 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {587#true} {587#true} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {587#true} is VALID [2022-04-07 18:48:56,058 INFO L290 TraceCheckUtils]: 14: Hoare triple {587#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:56,058 INFO L290 TraceCheckUtils]: 13: Hoare triple {587#true} [103] L16-->L16-2: 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[] {587#true} is VALID [2022-04-07 18:48:56,058 INFO L290 TraceCheckUtils]: 12: Hoare triple {587#true} [100] assume_abort_if_notENTRY-->L16: 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] {587#true} is VALID [2022-04-07 18:48:56,058 INFO L272 TraceCheckUtils]: 11: Hoare triple {587#true} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {587#true} is VALID [2022-04-07 18:48:56,059 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {587#true} {587#true} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {587#true} is VALID [2022-04-07 18:48:56,059 INFO L290 TraceCheckUtils]: 9: Hoare triple {587#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:56,059 INFO L290 TraceCheckUtils]: 8: Hoare triple {587#true} [103] L16-->L16-2: 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[] {587#true} is VALID [2022-04-07 18:48:56,059 INFO L290 TraceCheckUtils]: 7: Hoare triple {587#true} [100] assume_abort_if_notENTRY-->L16: 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] {587#true} is VALID [2022-04-07 18:48:56,059 INFO L272 TraceCheckUtils]: 6: Hoare triple {587#true} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {587#true} is VALID [2022-04-07 18:48:56,059 INFO L290 TraceCheckUtils]: 5: Hoare triple {587#true} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {587#true} is VALID [2022-04-07 18:48:56,059 INFO L272 TraceCheckUtils]: 4: Hoare triple {587#true} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:56,059 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {587#true} {587#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:56,060 INFO L290 TraceCheckUtils]: 2: Hoare triple {587#true} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:56,060 INFO L290 TraceCheckUtils]: 1: Hoare triple {587#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {587#true} is VALID [2022-04-07 18:48:56,060 INFO L272 TraceCheckUtils]: 0: Hoare triple {587#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {587#true} is VALID [2022-04-07 18:48:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 18:48:56,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 18:48:56,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437129275] [2022-04-07 18:48:56,060 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 18:48:56,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84755794] [2022-04-07 18:48:56,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84755794] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-07 18:48:56,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-07 18:48:56,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2022-04-07 18:48:56,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608319318] [2022-04-07 18:48:56,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 18:48:56,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2022-04-07 18:48:56,061 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 18:48:56,061 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:48:56,080 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:48:56,080 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 18:48:56,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 18:48:56,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 18:48:56,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-04-07 18:48:56,081 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:48:58,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-07 18:49:00,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-07 18:49:00,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:00,377 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2022-04-07 18:49:00,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 18:49:00,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2022-04-07 18:49:00,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 18:49:00,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:49:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2022-04-07 18:49:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:49:00,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2022-04-07 18:49:00,380 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 49 transitions. [2022-04-07 18:49:00,413 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:49:00,414 INFO L225 Difference]: With dead ends: 40 [2022-04-07 18:49:00,414 INFO L226 Difference]: Without dead ends: 39 [2022-04-07 18:49:00,414 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-04-07 18:49:00,415 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 12 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-07 18:49:00,415 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 104 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2022-04-07 18:49:00,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-04-07 18:49:00,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-04-07 18:49:00,417 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 18:49:00,417 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand has 39 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 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) [2022-04-07 18:49:00,418 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand has 39 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 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) [2022-04-07 18:49:00,418 INFO L87 Difference]: Start difference. First operand 39 states. Second operand has 39 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 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) [2022-04-07 18:49:00,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:00,419 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-04-07 18:49:00,419 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-04-07 18:49:00,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:00,419 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:00,420 INFO L74 IsIncluded]: Start isIncluded. First operand has 39 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 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 39 states. [2022-04-07 18:49:00,420 INFO L87 Difference]: Start difference. First operand has 39 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 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 39 states. [2022-04-07 18:49:00,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:00,421 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-04-07 18:49:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-04-07 18:49:00,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:00,421 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:00,421 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 18:49:00,421 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 18:49:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 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) [2022-04-07 18:49:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2022-04-07 18:49:00,422 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 26 [2022-04-07 18:49:00,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 18:49:00,423 INFO L478 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2022-04-07 18:49:00,423 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:49:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-04-07 18:49:00,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-04-07 18:49:00,423 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 18:49:00,423 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 18:49:00,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-07 18:49:00,624 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:49:00,624 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 18:49:00,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 18:49:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1664227005, now seen corresponding path program 1 times [2022-04-07 18:49:00,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 18:49:00,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627723960] [2022-04-07 18:49:00,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:49:00,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 18:49:00,648 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 18:49:00,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117877423] [2022-04-07 18:49:00,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:49:00,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:49:00,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 18:49:00,667 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) [2022-04-07 18:49:00,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-07 18:49:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:49:00,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-07 18:49:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:49:00,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 18:49:00,798 INFO L272 TraceCheckUtils]: 0: Hoare triple {912#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {912#true} is VALID [2022-04-07 18:49:00,799 INFO L290 TraceCheckUtils]: 1: Hoare triple {912#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,799 INFO L290 TraceCheckUtils]: 2: Hoare triple {920#(<= ~counter~0 0)} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,800 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {920#(<= ~counter~0 0)} {912#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,800 INFO L272 TraceCheckUtils]: 4: Hoare triple {920#(<= ~counter~0 0)} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,801 INFO L290 TraceCheckUtils]: 5: Hoare triple {920#(<= ~counter~0 0)} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,801 INFO L272 TraceCheckUtils]: 6: Hoare triple {920#(<= ~counter~0 0)} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,801 INFO L290 TraceCheckUtils]: 7: Hoare triple {920#(<= ~counter~0 0)} [100] assume_abort_if_notENTRY-->L16: 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] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,801 INFO L290 TraceCheckUtils]: 8: Hoare triple {920#(<= ~counter~0 0)} [103] L16-->L16-2: 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[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,802 INFO L290 TraceCheckUtils]: 9: Hoare triple {920#(<= ~counter~0 0)} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,802 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {920#(<= ~counter~0 0)} {920#(<= ~counter~0 0)} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,802 INFO L272 TraceCheckUtils]: 11: Hoare triple {920#(<= ~counter~0 0)} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,802 INFO L290 TraceCheckUtils]: 12: Hoare triple {920#(<= ~counter~0 0)} [100] assume_abort_if_notENTRY-->L16: 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] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,803 INFO L290 TraceCheckUtils]: 13: Hoare triple {920#(<= ~counter~0 0)} [103] L16-->L16-2: 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[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,803 INFO L290 TraceCheckUtils]: 14: Hoare triple {920#(<= ~counter~0 0)} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,803 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {920#(<= ~counter~0 0)} {920#(<= ~counter~0 0)} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,804 INFO L290 TraceCheckUtils]: 16: Hoare triple {920#(<= ~counter~0 0)} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,804 INFO L290 TraceCheckUtils]: 17: Hoare triple {920#(<= ~counter~0 0)} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {969#(<= ~counter~0 1)} is VALID [2022-04-07 18:49:00,804 INFO L290 TraceCheckUtils]: 18: Hoare triple {969#(<= ~counter~0 1)} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {969#(<= ~counter~0 1)} is VALID [2022-04-07 18:49:00,805 INFO L290 TraceCheckUtils]: 19: Hoare triple {969#(<= ~counter~0 1)} [115] L37-->L36-3: Formula: (and (<= (mod v_main_~b~0_2 4294967296) (mod v_main_~r~0_1 4294967296)) (= v_main_~b~0_1 (* v_main_~b~0_2 2))) InVars {main_~b~0=v_main_~b~0_2, main_~r~0=v_main_~r~0_1} OutVars{main_~b~0=v_main_~b~0_1, main_~r~0=v_main_~r~0_1} AuxVars[] AssignedVars[main_~b~0] {969#(<= ~counter~0 1)} is VALID [2022-04-07 18:49:00,805 INFO L290 TraceCheckUtils]: 20: Hoare triple {969#(<= ~counter~0 1)} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {979#(<= |main_#t~post3| 1)} is VALID [2022-04-07 18:49:00,805 INFO L290 TraceCheckUtils]: 21: Hoare triple {979#(<= |main_#t~post3| 1)} [109] L36-1-->L45-2: Formula: (not (< |v_main_#t~post3_3| 2)) InVars {main_#t~post3=|v_main_#t~post3_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {913#false} is VALID [2022-04-07 18:49:00,805 INFO L290 TraceCheckUtils]: 22: Hoare triple {913#false} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {913#false} is VALID [2022-04-07 18:49:00,805 INFO L290 TraceCheckUtils]: 23: Hoare triple {913#false} [112] L40-->L40-2: Formula: (not (< |v_main_#t~post4_3| 2)) InVars {main_#t~post4=|v_main_#t~post4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {913#false} is VALID [2022-04-07 18:49:00,805 INFO L272 TraceCheckUtils]: 24: Hoare triple {913#false} [111] L40-2-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (mod v_main_~A~0_8 4294967296) (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_8, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {913#false} is VALID [2022-04-07 18:49:00,806 INFO L290 TraceCheckUtils]: 25: Hoare triple {913#false} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {913#false} is VALID [2022-04-07 18:49:00,806 INFO L290 TraceCheckUtils]: 26: Hoare triple {913#false} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {913#false} is VALID [2022-04-07 18:49:00,806 INFO L290 TraceCheckUtils]: 27: Hoare triple {913#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {913#false} is VALID [2022-04-07 18:49:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 18:49:00,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 18:49:00,894 INFO L290 TraceCheckUtils]: 27: Hoare triple {913#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {913#false} is VALID [2022-04-07 18:49:00,894 INFO L290 TraceCheckUtils]: 26: Hoare triple {913#false} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {913#false} is VALID [2022-04-07 18:49:00,894 INFO L290 TraceCheckUtils]: 25: Hoare triple {913#false} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {913#false} is VALID [2022-04-07 18:49:00,894 INFO L272 TraceCheckUtils]: 24: Hoare triple {913#false} [111] L40-2-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (mod v_main_~A~0_8 4294967296) (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_8, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {913#false} is VALID [2022-04-07 18:49:00,894 INFO L290 TraceCheckUtils]: 23: Hoare triple {913#false} [112] L40-->L40-2: Formula: (not (< |v_main_#t~post4_3| 2)) InVars {main_#t~post4=|v_main_#t~post4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {913#false} is VALID [2022-04-07 18:49:00,894 INFO L290 TraceCheckUtils]: 22: Hoare triple {913#false} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {913#false} is VALID [2022-04-07 18:49:00,904 INFO L290 TraceCheckUtils]: 21: Hoare triple {979#(<= |main_#t~post3| 1)} [109] L36-1-->L45-2: Formula: (not (< |v_main_#t~post3_3| 2)) InVars {main_#t~post3=|v_main_#t~post3_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {913#false} is VALID [2022-04-07 18:49:00,904 INFO L290 TraceCheckUtils]: 20: Hoare triple {969#(<= ~counter~0 1)} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {979#(<= |main_#t~post3| 1)} is VALID [2022-04-07 18:49:00,905 INFO L290 TraceCheckUtils]: 19: Hoare triple {969#(<= ~counter~0 1)} [115] L37-->L36-3: Formula: (and (<= (mod v_main_~b~0_2 4294967296) (mod v_main_~r~0_1 4294967296)) (= v_main_~b~0_1 (* v_main_~b~0_2 2))) InVars {main_~b~0=v_main_~b~0_2, main_~r~0=v_main_~r~0_1} OutVars{main_~b~0=v_main_~b~0_1, main_~r~0=v_main_~r~0_1} AuxVars[] AssignedVars[main_~b~0] {969#(<= ~counter~0 1)} is VALID [2022-04-07 18:49:00,905 INFO L290 TraceCheckUtils]: 18: Hoare triple {969#(<= ~counter~0 1)} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {969#(<= ~counter~0 1)} is VALID [2022-04-07 18:49:00,906 INFO L290 TraceCheckUtils]: 17: Hoare triple {920#(<= ~counter~0 0)} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {969#(<= ~counter~0 1)} is VALID [2022-04-07 18:49:00,907 INFO L290 TraceCheckUtils]: 16: Hoare triple {920#(<= ~counter~0 0)} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,908 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {912#true} {920#(<= ~counter~0 0)} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,908 INFO L290 TraceCheckUtils]: 14: Hoare triple {912#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {912#true} is VALID [2022-04-07 18:49:00,908 INFO L290 TraceCheckUtils]: 13: Hoare triple {912#true} [103] L16-->L16-2: 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[] {912#true} is VALID [2022-04-07 18:49:00,908 INFO L290 TraceCheckUtils]: 12: Hoare triple {912#true} [100] assume_abort_if_notENTRY-->L16: 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] {912#true} is VALID [2022-04-07 18:49:00,908 INFO L272 TraceCheckUtils]: 11: Hoare triple {920#(<= ~counter~0 0)} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {912#true} is VALID [2022-04-07 18:49:00,909 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {912#true} {920#(<= ~counter~0 0)} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,909 INFO L290 TraceCheckUtils]: 9: Hoare triple {912#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {912#true} is VALID [2022-04-07 18:49:00,909 INFO L290 TraceCheckUtils]: 8: Hoare triple {912#true} [103] L16-->L16-2: 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[] {912#true} is VALID [2022-04-07 18:49:00,909 INFO L290 TraceCheckUtils]: 7: Hoare triple {912#true} [100] assume_abort_if_notENTRY-->L16: 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] {912#true} is VALID [2022-04-07 18:49:00,910 INFO L272 TraceCheckUtils]: 6: Hoare triple {920#(<= ~counter~0 0)} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {912#true} is VALID [2022-04-07 18:49:00,913 INFO L290 TraceCheckUtils]: 5: Hoare triple {920#(<= ~counter~0 0)} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,913 INFO L272 TraceCheckUtils]: 4: Hoare triple {920#(<= ~counter~0 0)} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,914 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {920#(<= ~counter~0 0)} {912#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,914 INFO L290 TraceCheckUtils]: 2: Hoare triple {920#(<= ~counter~0 0)} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,914 INFO L290 TraceCheckUtils]: 1: Hoare triple {912#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {920#(<= ~counter~0 0)} is VALID [2022-04-07 18:49:00,915 INFO L272 TraceCheckUtils]: 0: Hoare triple {912#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {912#true} is VALID [2022-04-07 18:49:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 18:49:00,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 18:49:00,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627723960] [2022-04-07 18:49:00,915 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 18:49:00,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117877423] [2022-04-07 18:49:00,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117877423] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-07 18:49:00,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-07 18:49:00,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-04-07 18:49:00,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640754423] [2022-04-07 18:49:00,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-07 18:49:00,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2022-04-07 18:49:00,916 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 18:49:00,916 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-07 18:49:00,942 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:49:00,942 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 18:49:00,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 18:49:00,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 18:49:00,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-07 18:49:00,943 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-07 18:49:01,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:01,056 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-04-07 18:49:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 18:49:01,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2022-04-07 18:49:01,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 18:49:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-07 18:49:01,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2022-04-07 18:49:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-07 18:49:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2022-04-07 18:49:01,058 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 42 transitions. [2022-04-07 18:49:01,089 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:49:01,090 INFO L225 Difference]: With dead ends: 41 [2022-04-07 18:49:01,090 INFO L226 Difference]: Without dead ends: 41 [2022-04-07 18:49:01,090 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-07 18:49:01,091 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 18:49:01,091 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 97 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 18:49:01,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-04-07 18:49:01,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-04-07 18:49:01,093 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 18:49:01,093 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 30 states have internal predecessors, (36), 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) [2022-04-07 18:49:01,093 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 30 states have internal predecessors, (36), 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) [2022-04-07 18:49:01,093 INFO L87 Difference]: Start difference. First operand 41 states. Second operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 30 states have internal predecessors, (36), 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) [2022-04-07 18:49:01,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:01,094 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-04-07 18:49:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-04-07 18:49:01,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:01,095 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:01,095 INFO L74 IsIncluded]: Start isIncluded. First operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 30 states have internal predecessors, (36), 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 41 states. [2022-04-07 18:49:01,095 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 30 states have internal predecessors, (36), 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 41 states. [2022-04-07 18:49:01,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:01,096 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-04-07 18:49:01,096 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-04-07 18:49:01,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:01,096 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:01,097 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 18:49:01,097 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 18:49:01,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 30 states have internal predecessors, (36), 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) [2022-04-07 18:49:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2022-04-07 18:49:01,098 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 28 [2022-04-07 18:49:01,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 18:49:01,098 INFO L478 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2022-04-07 18:49:01,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-07 18:49:01,098 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-04-07 18:49:01,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-07 18:49:01,098 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 18:49:01,099 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 18:49:01,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-07 18:49:01,299 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:49:01,299 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 18:49:01,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 18:49:01,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1687306486, now seen corresponding path program 1 times [2022-04-07 18:49:01,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 18:49:01,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350890872] [2022-04-07 18:49:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:49:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 18:49:01,323 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 18:49:01,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448133186] [2022-04-07 18:49:01,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:49:01,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:49:01,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 18:49:01,334 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) [2022-04-07 18:49:01,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-07 18:49:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:49:01,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-07 18:49:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:49:01,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 18:49:01,936 INFO L272 TraceCheckUtils]: 0: Hoare triple {1250#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:01,936 INFO L290 TraceCheckUtils]: 1: Hoare triple {1250#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {1250#true} is VALID [2022-04-07 18:49:01,936 INFO L290 TraceCheckUtils]: 2: Hoare triple {1250#true} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:01,936 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1250#true} {1250#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:01,937 INFO L272 TraceCheckUtils]: 4: Hoare triple {1250#true} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:01,937 INFO L290 TraceCheckUtils]: 5: Hoare triple {1250#true} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {1250#true} is VALID [2022-04-07 18:49:01,937 INFO L272 TraceCheckUtils]: 6: Hoare triple {1250#true} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1250#true} is VALID [2022-04-07 18:49:01,937 INFO L290 TraceCheckUtils]: 7: Hoare triple {1250#true} [100] assume_abort_if_notENTRY-->L16: 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] {1250#true} is VALID [2022-04-07 18:49:01,937 INFO L290 TraceCheckUtils]: 8: Hoare triple {1250#true} [103] L16-->L16-2: 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[] {1250#true} is VALID [2022-04-07 18:49:01,937 INFO L290 TraceCheckUtils]: 9: Hoare triple {1250#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:01,937 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1250#true} {1250#true} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1250#true} is VALID [2022-04-07 18:49:01,937 INFO L272 TraceCheckUtils]: 11: Hoare triple {1250#true} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1250#true} is VALID [2022-04-07 18:49:01,940 INFO L290 TraceCheckUtils]: 12: Hoare triple {1250#true} [100] assume_abort_if_notENTRY-->L16: 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] {1291#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-07 18:49:01,941 INFO L290 TraceCheckUtils]: 13: Hoare triple {1291#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [103] L16-->L16-2: 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[] {1295#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-07 18:49:01,941 INFO L290 TraceCheckUtils]: 14: Hoare triple {1295#(not (= |assume_abort_if_not_#in~cond| 0))} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1295#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-07 18:49:01,941 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {1295#(not (= |assume_abort_if_not_#in~cond| 0))} {1250#true} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1302#(<= 1 (mod main_~B~0 4294967296))} is VALID [2022-04-07 18:49:01,942 INFO L290 TraceCheckUtils]: 16: Hoare triple {1302#(<= 1 (mod main_~B~0 4294967296))} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {1306#(and (= main_~A~0 main_~r~0) (<= 1 (mod main_~b~0 4294967296)) (= main_~q~0 0))} is VALID [2022-04-07 18:49:01,942 INFO L290 TraceCheckUtils]: 17: Hoare triple {1306#(and (= main_~A~0 main_~r~0) (<= 1 (mod main_~b~0 4294967296)) (= main_~q~0 0))} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {1306#(and (= main_~A~0 main_~r~0) (<= 1 (mod main_~b~0 4294967296)) (= main_~q~0 0))} is VALID [2022-04-07 18:49:01,943 INFO L290 TraceCheckUtils]: 18: Hoare triple {1306#(and (= main_~A~0 main_~r~0) (<= 1 (mod main_~b~0 4294967296)) (= main_~q~0 0))} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {1306#(and (= main_~A~0 main_~r~0) (<= 1 (mod main_~b~0 4294967296)) (= main_~q~0 0))} is VALID [2022-04-07 18:49:01,944 INFO L290 TraceCheckUtils]: 19: Hoare triple {1306#(and (= main_~A~0 main_~r~0) (<= 1 (mod main_~b~0 4294967296)) (= main_~q~0 0))} [115] L37-->L36-3: Formula: (and (<= (mod v_main_~b~0_2 4294967296) (mod v_main_~r~0_1 4294967296)) (= v_main_~b~0_1 (* v_main_~b~0_2 2))) InVars {main_~b~0=v_main_~b~0_2, main_~r~0=v_main_~r~0_1} OutVars{main_~b~0=v_main_~b~0_1, main_~r~0=v_main_~r~0_1} AuxVars[] AssignedVars[main_~b~0] {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} is VALID [2022-04-07 18:49:01,944 INFO L290 TraceCheckUtils]: 20: Hoare triple {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} is VALID [2022-04-07 18:49:01,944 INFO L290 TraceCheckUtils]: 21: Hoare triple {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} is VALID [2022-04-07 18:49:01,945 INFO L290 TraceCheckUtils]: 22: Hoare triple {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} [114] L37-->L45-2: Formula: (not (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296))) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[] {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} is VALID [2022-04-07 18:49:01,945 INFO L290 TraceCheckUtils]: 23: Hoare triple {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} is VALID [2022-04-07 18:49:01,946 INFO L290 TraceCheckUtils]: 24: Hoare triple {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} [112] L40-->L40-2: Formula: (not (< |v_main_#t~post4_3| 2)) InVars {main_#t~post4=|v_main_#t~post4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} is VALID [2022-04-07 18:49:01,946 INFO L272 TraceCheckUtils]: 25: Hoare triple {1316#(and (< 0 (+ (div (+ (- 1) (mod main_~r~0 4294967296)) 4294967296) 1)) (= main_~A~0 main_~r~0) (= main_~q~0 0))} [111] L40-2-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (mod v_main_~A~0_8 4294967296) (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_8, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1335#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 18:49:01,947 INFO L290 TraceCheckUtils]: 26: Hoare triple {1335#(<= 1 |__VERIFIER_assert_#in~cond|)} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1339#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 18:49:01,947 INFO L290 TraceCheckUtils]: 27: Hoare triple {1339#(<= 1 __VERIFIER_assert_~cond)} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1251#false} is VALID [2022-04-07 18:49:01,947 INFO L290 TraceCheckUtils]: 28: Hoare triple {1251#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1251#false} is VALID [2022-04-07 18:49:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-07 18:49:01,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 18:49:02,489 INFO L290 TraceCheckUtils]: 28: Hoare triple {1251#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1251#false} is VALID [2022-04-07 18:49:02,490 INFO L290 TraceCheckUtils]: 27: Hoare triple {1339#(<= 1 __VERIFIER_assert_~cond)} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1251#false} is VALID [2022-04-07 18:49:02,490 INFO L290 TraceCheckUtils]: 26: Hoare triple {1335#(<= 1 |__VERIFIER_assert_#in~cond|)} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1339#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 18:49:02,492 INFO L272 TraceCheckUtils]: 25: Hoare triple {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [111] L40-2-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (mod v_main_~A~0_8 4294967296) (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_8, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1335#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 18:49:02,492 INFO L290 TraceCheckUtils]: 24: Hoare triple {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [112] L40-->L40-2: Formula: (not (< |v_main_#t~post4_3| 2)) InVars {main_#t~post4=|v_main_#t~post4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-07 18:49:02,493 INFO L290 TraceCheckUtils]: 23: Hoare triple {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-07 18:49:02,493 INFO L290 TraceCheckUtils]: 22: Hoare triple {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [114] L37-->L45-2: Formula: (not (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296))) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[] {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-07 18:49:02,494 INFO L290 TraceCheckUtils]: 21: Hoare triple {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-07 18:49:02,495 INFO L290 TraceCheckUtils]: 20: Hoare triple {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-07 18:49:02,495 INFO L290 TraceCheckUtils]: 19: Hoare triple {1374#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} [115] L37-->L36-3: Formula: (and (<= (mod v_main_~b~0_2 4294967296) (mod v_main_~r~0_1 4294967296)) (= v_main_~b~0_1 (* v_main_~b~0_2 2))) InVars {main_~b~0=v_main_~b~0_2, main_~r~0=v_main_~r~0_1} OutVars{main_~b~0=v_main_~b~0_1, main_~r~0=v_main_~r~0_1} AuxVars[] AssignedVars[main_~b~0] {1355#(forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296)))} is VALID [2022-04-07 18:49:02,496 INFO L290 TraceCheckUtils]: 18: Hoare triple {1374#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {1374#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} is VALID [2022-04-07 18:49:02,496 INFO L290 TraceCheckUtils]: 17: Hoare triple {1374#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {1374#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} is VALID [2022-04-07 18:49:02,497 INFO L290 TraceCheckUtils]: 16: Hoare triple {1250#true} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {1374#(or (not (<= (mod main_~b~0 4294967296) (mod main_~r~0 4294967296))) (forall ((main_~b~0 Int)) (= (mod main_~A~0 4294967296) (mod (+ main_~r~0 (* main_~b~0 main_~q~0)) 4294967296))))} is VALID [2022-04-07 18:49:02,497 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {1250#true} {1250#true} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1250#true} is VALID [2022-04-07 18:49:02,497 INFO L290 TraceCheckUtils]: 14: Hoare triple {1250#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:02,497 INFO L290 TraceCheckUtils]: 13: Hoare triple {1250#true} [103] L16-->L16-2: 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[] {1250#true} is VALID [2022-04-07 18:49:02,497 INFO L290 TraceCheckUtils]: 12: Hoare triple {1250#true} [100] assume_abort_if_notENTRY-->L16: 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] {1250#true} is VALID [2022-04-07 18:49:02,497 INFO L272 TraceCheckUtils]: 11: Hoare triple {1250#true} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1250#true} {1250#true} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L290 TraceCheckUtils]: 9: Hoare triple {1250#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L290 TraceCheckUtils]: 8: Hoare triple {1250#true} [103] L16-->L16-2: 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[] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L290 TraceCheckUtils]: 7: Hoare triple {1250#true} [100] assume_abort_if_notENTRY-->L16: 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] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L272 TraceCheckUtils]: 6: Hoare triple {1250#true} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L290 TraceCheckUtils]: 5: Hoare triple {1250#true} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L272 TraceCheckUtils]: 4: Hoare triple {1250#true} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1250#true} {1250#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L290 TraceCheckUtils]: 2: Hoare triple {1250#true} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:02,498 INFO L290 TraceCheckUtils]: 1: Hoare triple {1250#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {1250#true} is VALID [2022-04-07 18:49:02,499 INFO L272 TraceCheckUtils]: 0: Hoare triple {1250#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1250#true} is VALID [2022-04-07 18:49:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 18:49:02,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 18:49:02,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350890872] [2022-04-07 18:49:02,499 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 18:49:02,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448133186] [2022-04-07 18:49:02,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448133186] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-07 18:49:02,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-07 18:49:02,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2022-04-07 18:49:02,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305360554] [2022-04-07 18:49:02,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 18:49:02,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2022-04-07 18:49:02,500 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 18:49:02,500 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:49:04,118 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:49:04,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 18:49:04,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 18:49:04,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 18:49:04,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-04-07 18:49:04,119 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:49:05,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:05,078 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2022-04-07 18:49:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 18:49:05,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2022-04-07 18:49:05,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 18:49:05,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:49:05,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2022-04-07 18:49:05,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:49:05,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2022-04-07 18:49:05,081 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 50 transitions. [2022-04-07 18:49:06,768 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:49:06,769 INFO L225 Difference]: With dead ends: 50 [2022-04-07 18:49:06,769 INFO L226 Difference]: Without dead ends: 45 [2022-04-07 18:49:06,769 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-04-07 18:49:06,769 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 10 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 18:49:06,770 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 154 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 32 Unchecked, 0.0s Time] [2022-04-07 18:49:06,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-04-07 18:49:06,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2022-04-07 18:49:06,772 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 18:49:06,772 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand has 44 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 33 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-07 18:49:06,772 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand has 44 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 33 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-07 18:49:06,772 INFO L87 Difference]: Start difference. First operand 45 states. Second operand has 44 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 33 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-07 18:49:06,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:06,774 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2022-04-07 18:49:06,774 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2022-04-07 18:49:06,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:06,774 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:06,774 INFO L74 IsIncluded]: Start isIncluded. First operand has 44 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 33 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand 45 states. [2022-04-07 18:49:06,774 INFO L87 Difference]: Start difference. First operand has 44 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 33 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand 45 states. [2022-04-07 18:49:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:06,776 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2022-04-07 18:49:06,776 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2022-04-07 18:49:06,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:06,776 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:06,776 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 18:49:06,776 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 18:49:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 33 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-07 18:49:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2022-04-07 18:49:06,778 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 29 [2022-04-07 18:49:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 18:49:06,778 INFO L478 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2022-04-07 18:49:06,778 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-07 18:49:06,778 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-04-07 18:49:06,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-07 18:49:06,778 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 18:49:06,778 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 18:49:06,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-07 18:49:07,001 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:49:07,001 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 18:49:07,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 18:49:07,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1686174428, now seen corresponding path program 1 times [2022-04-07 18:49:07,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 18:49:07,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455031857] [2022-04-07 18:49:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:49:07,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 18:49:07,029 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 18:49:07,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027348663] [2022-04-07 18:49:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:49:07,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:49:07,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 18:49:07,031 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) [2022-04-07 18:49:07,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-07 18:49:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:49:07,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2022-04-07 18:49:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:49:07,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 18:49:07,328 INFO L272 TraceCheckUtils]: 0: Hoare triple {1620#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1620#true} is VALID [2022-04-07 18:49:07,329 INFO L290 TraceCheckUtils]: 1: Hoare triple {1620#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,330 INFO L290 TraceCheckUtils]: 2: Hoare triple {1628#(<= 0 ~counter~0)} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,330 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1628#(<= 0 ~counter~0)} {1620#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,333 INFO L272 TraceCheckUtils]: 4: Hoare triple {1628#(<= 0 ~counter~0)} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,334 INFO L290 TraceCheckUtils]: 5: Hoare triple {1628#(<= 0 ~counter~0)} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,334 INFO L272 TraceCheckUtils]: 6: Hoare triple {1628#(<= 0 ~counter~0)} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,334 INFO L290 TraceCheckUtils]: 7: Hoare triple {1628#(<= 0 ~counter~0)} [100] assume_abort_if_notENTRY-->L16: 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] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,335 INFO L290 TraceCheckUtils]: 8: Hoare triple {1628#(<= 0 ~counter~0)} [103] L16-->L16-2: 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[] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,335 INFO L290 TraceCheckUtils]: 9: Hoare triple {1628#(<= 0 ~counter~0)} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,335 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1628#(<= 0 ~counter~0)} {1628#(<= 0 ~counter~0)} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,336 INFO L272 TraceCheckUtils]: 11: Hoare triple {1628#(<= 0 ~counter~0)} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,336 INFO L290 TraceCheckUtils]: 12: Hoare triple {1628#(<= 0 ~counter~0)} [100] assume_abort_if_notENTRY-->L16: 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] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,336 INFO L290 TraceCheckUtils]: 13: Hoare triple {1628#(<= 0 ~counter~0)} [103] L16-->L16-2: 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[] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,336 INFO L290 TraceCheckUtils]: 14: Hoare triple {1628#(<= 0 ~counter~0)} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,337 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {1628#(<= 0 ~counter~0)} {1628#(<= 0 ~counter~0)} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,337 INFO L290 TraceCheckUtils]: 16: Hoare triple {1628#(<= 0 ~counter~0)} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {1628#(<= 0 ~counter~0)} is VALID [2022-04-07 18:49:07,337 INFO L290 TraceCheckUtils]: 17: Hoare triple {1628#(<= 0 ~counter~0)} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {1677#(<= 1 ~counter~0)} is VALID [2022-04-07 18:49:07,338 INFO L290 TraceCheckUtils]: 18: Hoare triple {1677#(<= 1 ~counter~0)} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {1677#(<= 1 ~counter~0)} is VALID [2022-04-07 18:49:07,338 INFO L290 TraceCheckUtils]: 19: Hoare triple {1677#(<= 1 ~counter~0)} [115] L37-->L36-3: Formula: (and (<= (mod v_main_~b~0_2 4294967296) (mod v_main_~r~0_1 4294967296)) (= v_main_~b~0_1 (* v_main_~b~0_2 2))) InVars {main_~b~0=v_main_~b~0_2, main_~r~0=v_main_~r~0_1} OutVars{main_~b~0=v_main_~b~0_1, main_~r~0=v_main_~r~0_1} AuxVars[] AssignedVars[main_~b~0] {1677#(<= 1 ~counter~0)} is VALID [2022-04-07 18:49:07,338 INFO L290 TraceCheckUtils]: 20: Hoare triple {1677#(<= 1 ~counter~0)} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {1687#(<= 2 ~counter~0)} is VALID [2022-04-07 18:49:07,339 INFO L290 TraceCheckUtils]: 21: Hoare triple {1687#(<= 2 ~counter~0)} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {1687#(<= 2 ~counter~0)} is VALID [2022-04-07 18:49:07,339 INFO L290 TraceCheckUtils]: 22: Hoare triple {1687#(<= 2 ~counter~0)} [114] L37-->L45-2: Formula: (not (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296))) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[] {1687#(<= 2 ~counter~0)} is VALID [2022-04-07 18:49:07,339 INFO L290 TraceCheckUtils]: 23: Hoare triple {1687#(<= 2 ~counter~0)} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {1697#(<= 2 |main_#t~post4|)} is VALID [2022-04-07 18:49:07,340 INFO L290 TraceCheckUtils]: 24: Hoare triple {1697#(<= 2 |main_#t~post4|)} [113] L40-->L41: Formula: (< |v_main_#t~post4_5| 2) InVars {main_#t~post4=|v_main_#t~post4_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {1621#false} is VALID [2022-04-07 18:49:07,340 INFO L272 TraceCheckUtils]: 25: Hoare triple {1621#false} [118] L41-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_7 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_7, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1621#false} is VALID [2022-04-07 18:49:07,340 INFO L290 TraceCheckUtils]: 26: Hoare triple {1621#false} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1621#false} is VALID [2022-04-07 18:49:07,340 INFO L290 TraceCheckUtils]: 27: Hoare triple {1621#false} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1621#false} is VALID [2022-04-07 18:49:07,340 INFO L290 TraceCheckUtils]: 28: Hoare triple {1621#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1621#false} is VALID [2022-04-07 18:49:07,342 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 18:49:07,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 18:49:07,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 18:49:07,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455031857] [2022-04-07 18:49:07,342 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 18:49:07,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027348663] [2022-04-07 18:49:07,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027348663] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 18:49:07,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 18:49:07,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 18:49:07,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819024834] [2022-04-07 18:49:07,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 18:49:07,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-04-07 18:49:07,345 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 18:49:07,345 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:49:07,374 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:49:07,375 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 18:49:07,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 18:49:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 18:49:07,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-07 18:49:07,375 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:49:07,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:07,507 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-04-07 18:49:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 18:49:07,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-04-07 18:49:07,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 18:49:07,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:49:07,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 40 transitions. [2022-04-07 18:49:07,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:49:07,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 40 transitions. [2022-04-07 18:49:07,515 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 40 transitions. [2022-04-07 18:49:07,549 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:49:07,550 INFO L225 Difference]: With dead ends: 41 [2022-04-07 18:49:07,550 INFO L226 Difference]: Without dead ends: 32 [2022-04-07 18:49:07,550 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-04-07 18:49:07,551 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 18:49:07,551 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 75 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 18:49:07,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-04-07 18:49:07,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-04-07 18:49:07,553 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 18:49:07,553 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand has 32 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 18:49:07,553 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand has 32 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 18:49:07,553 INFO L87 Difference]: Start difference. First operand 32 states. Second operand has 32 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 18:49:07,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:07,554 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-04-07 18:49:07,554 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-04-07 18:49:07,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:07,554 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:07,555 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 6 states have call successors, (6), 5 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 32 states. [2022-04-07 18:49:07,555 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 6 states have call successors, (6), 5 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 32 states. [2022-04-07 18:49:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:07,556 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-04-07 18:49:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-04-07 18:49:07,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:07,556 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:07,556 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 18:49:07,556 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 18:49:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 18:49:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-04-07 18:49:07,558 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 29 [2022-04-07 18:49:07,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 18:49:07,558 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-04-07 18:49:07,558 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 18:49:07,558 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-04-07 18:49:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-04-07 18:49:07,558 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 18:49:07,559 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 18:49:07,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-04-07 18:49:07,776 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:49:07,777 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 18:49:07,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 18:49:07,777 INFO L85 PathProgramCache]: Analyzing trace with hash -666194977, now seen corresponding path program 1 times [2022-04-07 18:49:07,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 18:49:07,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594027399] [2022-04-07 18:49:07,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:49:07,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 18:49:07,789 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 18:49:07,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401028765] [2022-04-07 18:49:07,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 18:49:07,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:49:07,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 18:49:07,793 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) [2022-04-07 18:49:07,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-07 18:49:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:49:07,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-07 18:49:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 18:49:07,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 18:49:07,919 INFO L272 TraceCheckUtils]: 0: Hoare triple {1851#true} [92] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1851#true} is VALID [2022-04-07 18:49:07,919 INFO L290 TraceCheckUtils]: 1: Hoare triple {1851#true} [94] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 9) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0) (= v_~counter~0_5 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_5, #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] {1851#true} is VALID [2022-04-07 18:49:07,919 INFO L290 TraceCheckUtils]: 2: Hoare triple {1851#true} [97] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1851#true} is VALID [2022-04-07 18:49:07,919 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1851#true} {1851#true} [129] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1851#true} is VALID [2022-04-07 18:49:07,919 INFO L272 TraceCheckUtils]: 4: Hoare triple {1851#true} [93] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1851#true} is VALID [2022-04-07 18:49:07,919 INFO L290 TraceCheckUtils]: 5: Hoare triple {1851#true} [96] mainENTRY-->L31: Formula: (and (= v_main_~B~0_1 |v_main_#t~nondet2_2|) (= v_main_~A~0_2 |v_main_#t~nondet1_2|)) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|, main_#t~nondet2=|v_main_#t~nondet2_2|} OutVars{main_~q~0=v_main_~q~0_2, main_~B~0=v_main_~B~0_1, main_~A~0=v_main_~A~0_2, main_~b~0=v_main_~b~0_4, main_~r~0=v_main_~r~0_3} AuxVars[] AssignedVars[main_~q~0, main_#t~nondet1, main_#t~nondet2, main_~B~0, main_~A~0, main_~b~0, main_~r~0] {1851#true} is VALID [2022-04-07 18:49:07,919 INFO L272 TraceCheckUtils]: 6: Hoare triple {1851#true} [98] L31-->assume_abort_if_notENTRY: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1851#true} is VALID [2022-04-07 18:49:07,919 INFO L290 TraceCheckUtils]: 7: Hoare triple {1851#true} [100] assume_abort_if_notENTRY-->L16: 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] {1851#true} is VALID [2022-04-07 18:49:07,919 INFO L290 TraceCheckUtils]: 8: Hoare triple {1851#true} [103] L16-->L16-2: 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[] {1851#true} is VALID [2022-04-07 18:49:07,920 INFO L290 TraceCheckUtils]: 9: Hoare triple {1851#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1851#true} is VALID [2022-04-07 18:49:07,920 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1851#true} {1851#true} [130] assume_abort_if_notEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (< (mod v_main_~B~0_9 4294967296) 2147483647) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~B~0=v_main_~B~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1851#true} is VALID [2022-04-07 18:49:07,920 INFO L272 TraceCheckUtils]: 11: Hoare triple {1851#true} [99] L31-1-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1851#true} is VALID [2022-04-07 18:49:07,920 INFO L290 TraceCheckUtils]: 12: Hoare triple {1851#true} [100] assume_abort_if_notENTRY-->L16: 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] {1851#true} is VALID [2022-04-07 18:49:07,920 INFO L290 TraceCheckUtils]: 13: Hoare triple {1851#true} [103] L16-->L16-2: 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[] {1851#true} is VALID [2022-04-07 18:49:07,921 INFO L290 TraceCheckUtils]: 14: Hoare triple {1851#true} [106] L16-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1851#true} is VALID [2022-04-07 18:49:07,921 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {1851#true} {1851#true} [131] assume_abort_if_notEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 (mod v_main_~B~0_10 4294967296)) 1 0) |v_assume_abort_if_not_#in~condInParam_2|) InVars {main_~B~0=v_main_~B~0_10} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~B~0, assume_abort_if_not_#in~cond] {1851#true} is VALID [2022-04-07 18:49:07,921 INFO L290 TraceCheckUtils]: 16: Hoare triple {1851#true} [101] L32-->L36-3: Formula: (and (= v_main_~A~0_5 v_main_~r~0_4) (= v_main_~B~0_7 v_main_~b~0_6) (= v_main_~q~0_3 0)) InVars {main_~A~0=v_main_~A~0_5, main_~B~0=v_main_~B~0_7} OutVars{main_~q~0=v_main_~q~0_3, main_~B~0=v_main_~B~0_7, main_~b~0=v_main_~b~0_6, main_~A~0=v_main_~A~0_5, main_~r~0=v_main_~r~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~r~0] {1904#(= main_~B~0 main_~b~0)} is VALID [2022-04-07 18:49:07,921 INFO L290 TraceCheckUtils]: 17: Hoare triple {1904#(= main_~B~0 main_~b~0)} [105] L36-3-->L36-1: Formula: (and (= (+ |v_main_#t~post3_1| 1) v_~counter~0_3) (= |v_main_#t~post3_1| v_~counter~0_4)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post3=|v_main_#t~post3_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post3] {1904#(= main_~B~0 main_~b~0)} is VALID [2022-04-07 18:49:07,923 INFO L290 TraceCheckUtils]: 18: Hoare triple {1904#(= main_~B~0 main_~b~0)} [110] L36-1-->L37: Formula: (< |v_main_#t~post3_5| 2) InVars {main_#t~post3=|v_main_#t~post3_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post3] {1904#(= main_~B~0 main_~b~0)} is VALID [2022-04-07 18:49:07,924 INFO L290 TraceCheckUtils]: 19: Hoare triple {1904#(= main_~B~0 main_~b~0)} [114] L37-->L45-2: Formula: (not (<= (mod v_main_~b~0_12 4294967296) (mod v_main_~r~0_9 4294967296))) InVars {main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} OutVars{main_~b~0=v_main_~b~0_12, main_~r~0=v_main_~r~0_9} AuxVars[] AssignedVars[] {1904#(= main_~B~0 main_~b~0)} is VALID [2022-04-07 18:49:07,924 INFO L290 TraceCheckUtils]: 20: Hoare triple {1904#(= main_~B~0 main_~b~0)} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {1904#(= main_~B~0 main_~b~0)} is VALID [2022-04-07 18:49:07,925 INFO L290 TraceCheckUtils]: 21: Hoare triple {1904#(= main_~B~0 main_~b~0)} [113] L40-->L41: Formula: (< |v_main_#t~post4_5| 2) InVars {main_#t~post4=|v_main_#t~post4_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {1904#(= main_~B~0 main_~b~0)} is VALID [2022-04-07 18:49:07,925 INFO L272 TraceCheckUtils]: 22: Hoare triple {1904#(= main_~B~0 main_~b~0)} [118] L41-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_7 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_7, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1851#true} is VALID [2022-04-07 18:49:07,925 INFO L290 TraceCheckUtils]: 23: Hoare triple {1851#true} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1851#true} is VALID [2022-04-07 18:49:07,925 INFO L290 TraceCheckUtils]: 24: Hoare triple {1851#true} [121] L19-->L19-2: Formula: (not (= 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[] {1851#true} is VALID [2022-04-07 18:49:07,926 INFO L290 TraceCheckUtils]: 25: Hoare triple {1851#true} [126] L19-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1851#true} is VALID [2022-04-07 18:49:07,926 INFO L284 TraceCheckUtils]: 26: Hoare quadruple {1851#true} {1904#(= main_~B~0 main_~b~0)} [133] __VERIFIER_assertEXIT-->L41-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (mod (+ v_main_~r~0_10 (* v_main_~q~0_9 v_main_~b~0_13)) 4294967296) (mod v_main_~A~0_7 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_9, main_~A~0=v_main_~A~0_7, main_~b~0=v_main_~b~0_13, main_~r~0=v_main_~r~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1904#(= main_~B~0 main_~b~0)} is VALID [2022-04-07 18:49:07,927 INFO L290 TraceCheckUtils]: 27: Hoare triple {1904#(= main_~B~0 main_~b~0)} [123] L41-1-->L45: Formula: (let ((.cse0 (mod v_main_~b~0_8 4294967296))) (and (= v_main_~q~0_4 (* v_main_~q~0_5 2)) (= v_main_~b~0_7 (div .cse0 2)) (not (= .cse0 (mod v_main_~B~0_8 4294967296))))) InVars {main_~q~0=v_main_~q~0_5, main_~B~0=v_main_~B~0_8, main_~b~0=v_main_~b~0_8} OutVars{main_~q~0=v_main_~q~0_4, main_~B~0=v_main_~B~0_8, main_~b~0=v_main_~b~0_7} AuxVars[] AssignedVars[main_~q~0, main_~b~0] {1852#false} is VALID [2022-04-07 18:49:07,927 INFO L290 TraceCheckUtils]: 28: Hoare triple {1852#false} [128] L45-->L45-2: Formula: (not (<= (mod v_main_~b~0_10 4294967296) (mod v_main_~r~0_7 4294967296))) InVars {main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_7} OutVars{main_~b~0=v_main_~b~0_10, main_~r~0=v_main_~r~0_7} AuxVars[] AssignedVars[] {1852#false} is VALID [2022-04-07 18:49:07,927 INFO L290 TraceCheckUtils]: 29: Hoare triple {1852#false} [108] L45-2-->L40: Formula: (and (= |v_main_#t~post4_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post4_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, ~counter~0=v_~counter~0_1} AuxVars[] AssignedVars[~counter~0, main_#t~post4] {1852#false} is VALID [2022-04-07 18:49:07,927 INFO L290 TraceCheckUtils]: 30: Hoare triple {1852#false} [112] L40-->L40-2: Formula: (not (< |v_main_#t~post4_3| 2)) InVars {main_#t~post4=|v_main_#t~post4_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post4] {1852#false} is VALID [2022-04-07 18:49:07,927 INFO L272 TraceCheckUtils]: 31: Hoare triple {1852#false} [111] L40-2-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (mod v_main_~A~0_8 4294967296) (mod (+ v_main_~r~0_11 (* v_main_~q~0_10 v_main_~b~0_14)) 4294967296)) 1 0)) InVars {main_~q~0=v_main_~q~0_10, main_~A~0=v_main_~A~0_8, main_~b~0=v_main_~b~0_14, main_~r~0=v_main_~r~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~A~0, main_~b~0, main_~r~0] {1852#false} is VALID [2022-04-07 18:49:07,927 INFO L290 TraceCheckUtils]: 32: Hoare triple {1852#false} [117] __VERIFIER_assertENTRY-->L19: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1852#false} is VALID [2022-04-07 18:49:07,927 INFO L290 TraceCheckUtils]: 33: Hoare triple {1852#false} [120] L19-->L20: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1852#false} is VALID [2022-04-07 18:49:07,928 INFO L290 TraceCheckUtils]: 34: Hoare triple {1852#false} [124] L20-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1852#false} is VALID [2022-04-07 18:49:07,928 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 18:49:07,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 18:49:07,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 18:49:07,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594027399] [2022-04-07 18:49:07,928 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 18:49:07,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401028765] [2022-04-07 18:49:07,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401028765] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 18:49:07,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 18:49:07,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 18:49:07,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686276373] [2022-04-07 18:49:07,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 18:49:07,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-04-07 18:49:07,930 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 18:49:07,930 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-07 18:49:07,953 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:49:07,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 18:49:07,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 18:49:07,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 18:49:07,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 18:49:07,954 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-07 18:49:07,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:07,985 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-04-07 18:49:07,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 18:49:07,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-04-07 18:49:07,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 18:49:07,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-07 18:49:07,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2022-04-07 18:49:07,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-07 18:49:07,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2022-04-07 18:49:07,987 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 25 transitions. [2022-04-07 18:49:08,004 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 18:49:08,004 INFO L225 Difference]: With dead ends: 24 [2022-04-07 18:49:08,004 INFO L226 Difference]: Without dead ends: 0 [2022-04-07 18:49:08,005 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 18:49:08,005 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 18:49:08,005 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 18:49:08,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-07 18:49:08,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-07 18:49:08,006 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 18:49:08,006 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 18:49:08,006 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 18:49:08,007 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 18:49:08,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:08,007 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 18:49:08,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 18:49:08,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:08,007 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:08,007 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-07 18:49:08,007 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-07 18:49:08,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 18:49:08,007 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 18:49:08,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 18:49:08,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:08,008 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 18:49:08,008 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 18:49:08,008 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 18:49:08,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 18:49:08,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-07 18:49:08,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2022-04-07 18:49:08,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 18:49:08,008 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-07 18:49:08,008 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-07 18:49:08,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 18:49:08,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 18:49:08,010 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 18:49:08,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-07 18:49:08,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 18:49:08,213 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 18:49:08,214 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 18:49:08,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 06:49:08 BasicIcfg [2022-04-07 18:49:08,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 18:49:08,218 INFO L158 Benchmark]: Toolchain (without parser) took 15656.74ms. Allocated memory was 255.9MB in the beginning and 345.0MB in the end (delta: 89.1MB). Free memory was 230.6MB in the beginning and 248.7MB in the end (delta: -18.0MB). Peak memory consumption was 71.0MB. Max. memory is 8.0GB. [2022-04-07 18:49:08,218 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 255.9MB. Free memory is still 218.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 18:49:08,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.11ms. Allocated memory is still 255.9MB. Free memory was 230.4MB in the beginning and 228.7MB in the end (delta: 1.7MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-04-07 18:49:08,218 INFO L158 Benchmark]: Boogie Preprocessor took 23.68ms. Allocated memory is still 255.9MB. Free memory was 228.7MB in the beginning and 226.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-07 18:49:08,218 INFO L158 Benchmark]: RCFGBuilder took 235.30ms. Allocated memory is still 255.9MB. Free memory was 226.9MB in the beginning and 215.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-07 18:49:08,218 INFO L158 Benchmark]: IcfgTransformer took 20.96ms. Allocated memory is still 255.9MB. Free memory was 215.1MB in the beginning and 213.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-07 18:49:08,219 INFO L158 Benchmark]: TraceAbstraction took 15182.25ms. Allocated memory was 255.9MB in the beginning and 345.0MB in the end (delta: 89.1MB). Free memory was 213.0MB in the beginning and 248.7MB in the end (delta: -35.6MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2022-04-07 18:49:08,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 255.9MB. Free memory is still 218.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.11ms. Allocated memory is still 255.9MB. Free memory was 230.4MB in the beginning and 228.7MB in the end (delta: 1.7MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.68ms. Allocated memory is still 255.9MB. Free memory was 228.7MB in the beginning and 226.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 235.30ms. Allocated memory is still 255.9MB. Free memory was 226.9MB in the beginning and 215.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 20.96ms. Allocated memory is still 255.9MB. Free memory was 215.1MB in the beginning and 213.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 15182.25ms. Allocated memory was 255.9MB in the beginning and 345.0MB in the end (delta: 89.1MB). Free memory was 213.0MB in the beginning and 248.7MB in the end (delta: -35.6MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.1s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 684 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 32 IncrementalHoareTripleChecker+Unchecked, 430 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 254 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=6, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 293 ConstructedInterpolants, 9 QuantifiedInterpolants, 979 SizeOfPredicates, 15 NumberOfNonLiveVariables, 679 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 51/61 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-07 18:49:08,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...