/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 03:11:59,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 03:11:59,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 03:11:59,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-15 03:11:59,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-15 03:11:59,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-15 03:11:59,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-15 03:11:59,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-15 03:11:59,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-15 03:11:59,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-15 03:11:59,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-15 03:11:59,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-15 03:11:59,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 03:11:59,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 03:11:59,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 03:11:59,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 03:11:59,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 03:11:59,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 03:11:59,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 03:11:59,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 03:11:59,677 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 03:11:59,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 03:11:59,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 03:11:59,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 03:11:59,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 03:11:59,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-15 03:11:59,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-15 03:11:59,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-15 03:11:59,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-15 03:11:59,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-15 03:11:59,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-15 03:11:59,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 03:11:59,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 03:11:59,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 03:11:59,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-15 03:11:59,733 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 03:11:59,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 03:11:59,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-15 03:11:59,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-15 03:11:59,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-15 03:11:59,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-15 03:11:59,735 INFO L138 SettingsManager]: * Use SBE=true [2022-04-15 03:11:59,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 03:11:59,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 03:11:59,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 03:11:59,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 03:11:59,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 03:11:59,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 03:11:59,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 03:11:59,737 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 03:11:59,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 03:11:59,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 03:11:59,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 03:11:59,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 03:11:59,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 03:11:59,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 03:11:59,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-15 03:11:59,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-15 03:11:59,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-15 03:11:59,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-15 03:11:59,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 03:11:59,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-15 03:11:59,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-15 03:11:59,741 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-15 03:11:59,741 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 03:12:00,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 03:12:00,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 03:12:00,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 03:12:00,038 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 03:12:00,039 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 03:12:00,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound20.c [2022-04-15 03:12:00,116 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954a1bda9/cec28d54f5c84f65a0f953b432a0c30c/FLAG977cfe814 [2022-04-15 03:12:00,551 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 03:12:00,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound20.c [2022-04-15 03:12:00,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954a1bda9/cec28d54f5c84f65a0f953b432a0c30c/FLAG977cfe814 [2022-04-15 03:12:00,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954a1bda9/cec28d54f5c84f65a0f953b432a0c30c [2022-04-15 03:12:00,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 03:12:00,962 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-15 03:12:00,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 03:12:00,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 03:12:00,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 03:12:00,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 03:12:00" (1/1) ... [2022-04-15 03:12:00,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea85d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:00, skipping insertion in model container [2022-04-15 03:12:00,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 03:12:00" (1/1) ... [2022-04-15 03:12:00,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 03:12:00,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 03:12:01,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound20.c[546,559] [2022-04-15 03:12:01,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 03:12:01,213 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 03:12:01,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_unwindbound20.c[546,559] [2022-04-15 03:12:01,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 03:12:01,258 INFO L208 MainTranslator]: Completed translation [2022-04-15 03:12:01,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01 WrapperNode [2022-04-15 03:12:01,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 03:12:01,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 03:12:01,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 03:12:01,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 03:12:01,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01" (1/1) ... [2022-04-15 03:12:01,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01" (1/1) ... [2022-04-15 03:12:01,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01" (1/1) ... [2022-04-15 03:12:01,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01" (1/1) ... [2022-04-15 03:12:01,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01" (1/1) ... [2022-04-15 03:12:01,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01" (1/1) ... [2022-04-15 03:12:01,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01" (1/1) ... [2022-04-15 03:12:01,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 03:12:01,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 03:12:01,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 03:12:01,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 03:12:01,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01" (1/1) ... [2022-04-15 03:12:01,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 03:12:01,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 03:12:01,341 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) [2022-04-15 03:12:01,363 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 [2022-04-15 03:12:01,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 03:12:01,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 03:12:01,377 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 03:12:01,377 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 03:12:01,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 03:12:01,378 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 03:12:01,378 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 03:12:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 03:12:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 03:12:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 03:12:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 03:12:01,452 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 03:12:01,454 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 03:12:01,626 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 03:12:01,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 03:12:01,632 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 03:12:01,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 03:12:01 BoogieIcfgContainer [2022-04-15 03:12:01,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 03:12:01,634 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-15 03:12:01,634 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-15 03:12:01,635 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-15 03:12:01,638 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 03:12:01" (1/1) ... [2022-04-15 03:12:01,639 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-15 03:12:01,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 03:12:01 BasicIcfg [2022-04-15 03:12:01,673 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-15 03:12:01,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 03:12:01,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 03:12:01,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 03:12:01,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 03:12:00" (1/4) ... [2022-04-15 03:12:01,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fd04f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 03:12:01, skipping insertion in model container [2022-04-15 03:12:01,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 03:12:01" (2/4) ... [2022-04-15 03:12:01,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fd04f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 03:12:01, skipping insertion in model container [2022-04-15 03:12:01,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 03:12:01" (3/4) ... [2022-04-15 03:12:01,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fd04f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 03:12:01, skipping insertion in model container [2022-04-15 03:12:01,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 03:12:01" (4/4) ... [2022-04-15 03:12:01,683 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound20.cqvasr [2022-04-15 03:12:01,688 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-15 03:12:01,688 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 03:12:01,725 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 03:12:01,731 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-15 03:12:01,731 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 03:12:01,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 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), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-15 03:12:01,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-15 03:12:01,754 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 03:12:01,755 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] [2022-04-15 03:12:01,755 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 03:12:01,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 03:12:01,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1175629711, now seen corresponding path program 1 times [2022-04-15 03:12:01,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 03:12:01,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462853804] [2022-04-15 03:12:01,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 03:12:01,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 03:12:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:01,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 03:12:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:02,008 INFO L290 TraceCheckUtils]: 0: Hoare triple {46#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {33#true} is VALID [2022-04-15 03:12:02,008 INFO L290 TraceCheckUtils]: 1: Hoare triple {33#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-15 03:12:02,009 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-15 03:12:02,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-15 03:12:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:02,029 INFO L290 TraceCheckUtils]: 0: Hoare triple {33#true} [73] assume_abort_if_notENTRY-->L13: 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] {33#true} is VALID [2022-04-15 03:12:02,030 INFO L290 TraceCheckUtils]: 1: Hoare triple {33#true} [75] L13-->L13-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,031 INFO L290 TraceCheckUtils]: 2: Hoare triple {34#false} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,031 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {34#false} {33#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {34#false} is VALID [2022-04-15 03:12:02,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-15 03:12:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:02,047 INFO L290 TraceCheckUtils]: 0: Hoare triple {33#true} [73] assume_abort_if_notENTRY-->L13: 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] {33#true} is VALID [2022-04-15 03:12:02,048 INFO L290 TraceCheckUtils]: 1: Hoare triple {33#true} [75] L13-->L13-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,048 INFO L290 TraceCheckUtils]: 2: Hoare triple {34#false} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,049 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {34#false} {34#false} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {34#false} is VALID [2022-04-15 03:12:02,051 INFO L272 TraceCheckUtils]: 0: Hoare triple {33#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {46#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 03:12:02,052 INFO L290 TraceCheckUtils]: 1: Hoare triple {46#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {33#true} is VALID [2022-04-15 03:12:02,052 INFO L290 TraceCheckUtils]: 2: Hoare triple {33#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-15 03:12:02,052 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {33#true} {33#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-15 03:12:02,053 INFO L272 TraceCheckUtils]: 4: Hoare triple {33#true} [66] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-15 03:12:02,053 INFO L290 TraceCheckUtils]: 5: Hoare triple {33#true} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {33#true} is VALID [2022-04-15 03:12:02,053 INFO L272 TraceCheckUtils]: 6: Hoare triple {33#true} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {33#true} is VALID [2022-04-15 03:12:02,053 INFO L290 TraceCheckUtils]: 7: Hoare triple {33#true} [73] assume_abort_if_notENTRY-->L13: 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] {33#true} is VALID [2022-04-15 03:12:02,060 INFO L290 TraceCheckUtils]: 8: Hoare triple {33#true} [75] L13-->L13-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,060 INFO L290 TraceCheckUtils]: 9: Hoare triple {34#false} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,062 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {34#false} {33#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {34#false} is VALID [2022-04-15 03:12:02,063 INFO L272 TraceCheckUtils]: 11: Hoare triple {34#false} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#true} is VALID [2022-04-15 03:12:02,063 INFO L290 TraceCheckUtils]: 12: Hoare triple {33#true} [73] assume_abort_if_notENTRY-->L13: 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] {33#true} is VALID [2022-04-15 03:12:02,063 INFO L290 TraceCheckUtils]: 13: Hoare triple {33#true} [75] L13-->L13-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,064 INFO L290 TraceCheckUtils]: 14: Hoare triple {34#false} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,064 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {34#false} {34#false} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {34#false} is VALID [2022-04-15 03:12:02,064 INFO L290 TraceCheckUtils]: 16: Hoare triple {34#false} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1)) InVars {main_~z~0=v_main_~z~0_6} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {34#false} is VALID [2022-04-15 03:12:02,065 INFO L290 TraceCheckUtils]: 17: Hoare triple {34#false} [77] L35-3-->L35-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,065 INFO L290 TraceCheckUtils]: 18: Hoare triple {34#false} [80] L35-4-->L49: Formula: (= v_main_~x~0_1 (* v_main_~x~0_2 (+ (- 1) v_main_~z~0_1))) InVars {main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_1} OutVars{main_~x~0=v_main_~x~0_1, main_~z~0=v_main_~z~0_1} AuxVars[] AssignedVars[main_~x~0] {34#false} is VALID [2022-04-15 03:12:02,065 INFO L272 TraceCheckUtils]: 19: Hoare triple {34#false} [83] L49-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (- 1) v_main_~y~0_8) v_main_~x~0_10 1) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {34#false} is VALID [2022-04-15 03:12:02,065 INFO L290 TraceCheckUtils]: 20: Hoare triple {34#false} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {34#false} is VALID [2022-04-15 03:12:02,066 INFO L290 TraceCheckUtils]: 21: Hoare triple {34#false} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,066 INFO L290 TraceCheckUtils]: 22: Hoare triple {34#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-15 03:12:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-15 03:12:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 03:12:02,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462853804] [2022-04-15 03:12:02,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462853804] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 03:12:02,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 03:12:02,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 03:12:02,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037752162] [2022-04-15 03:12:02,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 03:12:02,079 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 [2022-04-15 03:12:02,081 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 03:12:02,083 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) [2022-04-15 03:12:02,113 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 03:12:02,113 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-15 03:12:02,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 03:12:02,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-15 03:12:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 03:12:02,148 INFO L87 Difference]: Start difference. First operand has 30 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), 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) [2022-04-15 03:12:02,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:02,363 INFO L93 Difference]: Finished difference Result 54 states and 70 transitions. [2022-04-15 03:12:02,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-15 03:12:02,364 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 [2022-04-15 03:12:02,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 03:12:02,366 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) [2022-04-15 03:12:02,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2022-04-15 03:12:02,375 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) [2022-04-15 03:12:02,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2022-04-15 03:12:02,380 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 70 transitions. [2022-04-15 03:12:02,486 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 03:12:02,495 INFO L225 Difference]: With dead ends: 54 [2022-04-15 03:12:02,495 INFO L226 Difference]: Without dead ends: 26 [2022-04-15 03:12:02,499 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 [2022-04-15 03:12:02,502 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 03:12:02,504 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 34 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 03:12:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-04-15 03:12:02,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-04-15 03:12:02,563 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 03:12:02,564 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-04-15 03:12:02,565 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-04-15 03:12:02,565 INFO L87 Difference]: Start difference. First operand 26 states. Second operand has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-04-15 03:12:02,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:02,579 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-15 03:12:02,579 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-15 03:12:02,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 03:12:02,580 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 03:12:02,581 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states. [2022-04-15 03:12:02,581 INFO L87 Difference]: Start difference. First operand has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states. [2022-04-15 03:12:02,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:02,584 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-15 03:12:02,584 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-15 03:12:02,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 03:12:02,585 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 03:12:02,585 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 03:12:02,585 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 03:12:02,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-04-15 03:12:02,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-04-15 03:12:02,589 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 23 [2022-04-15 03:12:02,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 03:12:02,589 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-04-15 03:12:02,590 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) [2022-04-15 03:12:02,590 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-15 03:12:02,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-15 03:12:02,591 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 03:12:02,591 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] [2022-04-15 03:12:02,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 03:12:02,591 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 03:12:02,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 03:12:02,592 INFO L85 PathProgramCache]: Analyzing trace with hash 165914577, now seen corresponding path program 1 times [2022-04-15 03:12:02,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 03:12:02,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37935805] [2022-04-15 03:12:02,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 03:12:02,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 03:12:02,615 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 03:12:02,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379506411] [2022-04-15 03:12:02,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 03:12:02,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 03:12:02,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 03:12:02,618 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) [2022-04-15 03:12:02,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-15 03:12:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:02,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-15 03:12:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:02,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 03:12:02,891 INFO L272 TraceCheckUtils]: 0: Hoare triple {209#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#true} is VALID [2022-04-15 03:12:02,892 INFO L290 TraceCheckUtils]: 1: Hoare triple {209#true} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {209#true} is VALID [2022-04-15 03:12:02,892 INFO L290 TraceCheckUtils]: 2: Hoare triple {209#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#true} is VALID [2022-04-15 03:12:02,892 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {209#true} {209#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#true} is VALID [2022-04-15 03:12:02,892 INFO L272 TraceCheckUtils]: 4: Hoare triple {209#true} [66] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#true} is VALID [2022-04-15 03:12:02,893 INFO L290 TraceCheckUtils]: 5: Hoare triple {209#true} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {209#true} is VALID [2022-04-15 03:12:02,893 INFO L272 TraceCheckUtils]: 6: Hoare triple {209#true} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {209#true} is VALID [2022-04-15 03:12:02,893 INFO L290 TraceCheckUtils]: 7: Hoare triple {209#true} [73] assume_abort_if_notENTRY-->L13: 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] {209#true} is VALID [2022-04-15 03:12:02,893 INFO L290 TraceCheckUtils]: 8: Hoare triple {209#true} [76] L13-->L13-2: 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[] {209#true} is VALID [2022-04-15 03:12:02,894 INFO L290 TraceCheckUtils]: 9: Hoare triple {209#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#true} is VALID [2022-04-15 03:12:02,894 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {209#true} {209#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {209#true} is VALID [2022-04-15 03:12:02,894 INFO L272 TraceCheckUtils]: 11: Hoare triple {209#true} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {209#true} is VALID [2022-04-15 03:12:02,894 INFO L290 TraceCheckUtils]: 12: Hoare triple {209#true} [73] assume_abort_if_notENTRY-->L13: 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] {209#true} is VALID [2022-04-15 03:12:02,895 INFO L290 TraceCheckUtils]: 13: Hoare triple {209#true} [76] L13-->L13-2: 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[] {209#true} is VALID [2022-04-15 03:12:02,895 INFO L290 TraceCheckUtils]: 14: Hoare triple {209#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#true} is VALID [2022-04-15 03:12:02,895 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {209#true} {209#true} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {209#true} is VALID [2022-04-15 03:12:02,896 INFO L290 TraceCheckUtils]: 16: Hoare triple {209#true} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1)) InVars {main_~z~0=v_main_~z~0_6} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {262#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} is VALID [2022-04-15 03:12:02,897 INFO L290 TraceCheckUtils]: 17: Hoare triple {262#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} [78] L35-3-->L35-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {262#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} is VALID [2022-04-15 03:12:02,897 INFO L290 TraceCheckUtils]: 18: Hoare triple {262#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} [82] L35-1-->L36: Formula: (< |v_main_#t~post6_5| 20) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {262#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} is VALID [2022-04-15 03:12:02,899 INFO L272 TraceCheckUtils]: 19: Hoare triple {262#(and (= main_~z~0 main_~y~0) (= main_~x~0 1))} [84] L36-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {272#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 03:12:02,899 INFO L290 TraceCheckUtils]: 20: Hoare triple {272#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {276#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 03:12:02,900 INFO L290 TraceCheckUtils]: 21: Hoare triple {276#(<= 1 __VERIFIER_assert_~cond)} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {210#false} is VALID [2022-04-15 03:12:02,900 INFO L290 TraceCheckUtils]: 22: Hoare triple {210#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {210#false} is VALID [2022-04-15 03:12:02,900 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-15 03:12:02,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-15 03:12:02,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 03:12:02,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37935805] [2022-04-15 03:12:02,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 03:12:02,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379506411] [2022-04-15 03:12:02,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379506411] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 03:12:02,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 03:12:02,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-15 03:12:02,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900970245] [2022-04-15 03:12:02,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 03:12:02,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (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 23 [2022-04-15 03:12:02,904 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 03:12:02,904 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (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) [2022-04-15 03:12:02,924 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 03:12:02,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-15 03:12:02,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 03:12:02,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-15 03:12:02,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-15 03:12:02,926 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (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) [2022-04-15 03:12:03,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:03,048 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-15 03:12:03,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-15 03:12:03,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (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 23 [2022-04-15 03:12:03,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 03:12:03,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (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) [2022-04-15 03:12:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-04-15 03:12:03,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (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) [2022-04-15 03:12:03,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-04-15 03:12:03,053 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2022-04-15 03:12:03,092 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 03:12:03,093 INFO L225 Difference]: With dead ends: 36 [2022-04-15 03:12:03,094 INFO L226 Difference]: Without dead ends: 34 [2022-04-15 03:12:03,094 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-15 03:12:03,095 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 03:12:03,096 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 88 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 03:12:03,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-15 03:12:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2022-04-15 03:12:03,102 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 03:12:03,103 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 03:12:03,103 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 03:12:03,103 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 03:12:03,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:03,106 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2022-04-15 03:12:03,106 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2022-04-15 03:12:03,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 03:12:03,106 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 03:12:03,107 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 34 states. [2022-04-15 03:12:03,107 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 34 states. [2022-04-15 03:12:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:03,109 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2022-04-15 03:12:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2022-04-15 03:12:03,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 03:12:03,110 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 03:12:03,110 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 03:12:03,110 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 03:12:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 03:12:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-04-15 03:12:03,113 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2022-04-15 03:12:03,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 03:12:03,113 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-04-15 03:12:03,113 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (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) [2022-04-15 03:12:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-04-15 03:12:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-15 03:12:03,114 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 03:12:03,115 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] [2022-04-15 03:12:03,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-15 03:12:03,335 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 [2022-04-15 03:12:03,336 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 03:12:03,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 03:12:03,337 INFO L85 PathProgramCache]: Analyzing trace with hash 815968169, now seen corresponding path program 1 times [2022-04-15 03:12:03,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 03:12:03,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496963441] [2022-04-15 03:12:03,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 03:12:03,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 03:12:03,361 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 03:12:03,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114787029] [2022-04-15 03:12:03,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 03:12:03,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 03:12:03,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 03:12:03,367 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) [2022-04-15 03:12:03,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-15 03:12:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:03,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-15 03:12:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:03,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 03:12:03,558 INFO L272 TraceCheckUtils]: 0: Hoare triple {448#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {448#true} is VALID [2022-04-15 03:12:03,560 INFO L290 TraceCheckUtils]: 1: Hoare triple {448#true} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,560 INFO L290 TraceCheckUtils]: 2: Hoare triple {456#(<= ~counter~0 0)} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,561 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {456#(<= ~counter~0 0)} {448#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,562 INFO L272 TraceCheckUtils]: 4: Hoare triple {456#(<= ~counter~0 0)} [66] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,562 INFO L290 TraceCheckUtils]: 5: Hoare triple {456#(<= ~counter~0 0)} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,563 INFO L272 TraceCheckUtils]: 6: Hoare triple {456#(<= ~counter~0 0)} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,563 INFO L290 TraceCheckUtils]: 7: Hoare triple {456#(<= ~counter~0 0)} [73] assume_abort_if_notENTRY-->L13: 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] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,564 INFO L290 TraceCheckUtils]: 8: Hoare triple {456#(<= ~counter~0 0)} [76] L13-->L13-2: 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[] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,564 INFO L290 TraceCheckUtils]: 9: Hoare triple {456#(<= ~counter~0 0)} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,565 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {456#(<= ~counter~0 0)} {456#(<= ~counter~0 0)} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,566 INFO L272 TraceCheckUtils]: 11: Hoare triple {456#(<= ~counter~0 0)} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,566 INFO L290 TraceCheckUtils]: 12: Hoare triple {456#(<= ~counter~0 0)} [73] assume_abort_if_notENTRY-->L13: 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] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,567 INFO L290 TraceCheckUtils]: 13: Hoare triple {456#(<= ~counter~0 0)} [76] L13-->L13-2: 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[] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,567 INFO L290 TraceCheckUtils]: 14: Hoare triple {456#(<= ~counter~0 0)} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,568 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {456#(<= ~counter~0 0)} {456#(<= ~counter~0 0)} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,568 INFO L290 TraceCheckUtils]: 16: Hoare triple {456#(<= ~counter~0 0)} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1)) InVars {main_~z~0=v_main_~z~0_6} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {456#(<= ~counter~0 0)} is VALID [2022-04-15 03:12:03,569 INFO L290 TraceCheckUtils]: 17: Hoare triple {456#(<= ~counter~0 0)} [78] L35-3-->L35-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {505#(<= |main_#t~post6| 0)} is VALID [2022-04-15 03:12:03,570 INFO L290 TraceCheckUtils]: 18: Hoare triple {505#(<= |main_#t~post6| 0)} [81] L35-1-->L35-4: Formula: (not (< |v_main_#t~post6_3| 20)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {449#false} is VALID [2022-04-15 03:12:03,570 INFO L290 TraceCheckUtils]: 19: Hoare triple {449#false} [80] L35-4-->L49: Formula: (= v_main_~x~0_1 (* v_main_~x~0_2 (+ (- 1) v_main_~z~0_1))) InVars {main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_1} OutVars{main_~x~0=v_main_~x~0_1, main_~z~0=v_main_~z~0_1} AuxVars[] AssignedVars[main_~x~0] {449#false} is VALID [2022-04-15 03:12:03,570 INFO L272 TraceCheckUtils]: 20: Hoare triple {449#false} [83] L49-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (- 1) v_main_~y~0_8) v_main_~x~0_10 1) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {449#false} is VALID [2022-04-15 03:12:03,570 INFO L290 TraceCheckUtils]: 21: Hoare triple {449#false} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {449#false} is VALID [2022-04-15 03:12:03,571 INFO L290 TraceCheckUtils]: 22: Hoare triple {449#false} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {449#false} is VALID [2022-04-15 03:12:03,571 INFO L290 TraceCheckUtils]: 23: Hoare triple {449#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {449#false} is VALID [2022-04-15 03:12:03,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-15 03:12:03,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-15 03:12:03,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 03:12:03,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496963441] [2022-04-15 03:12:03,572 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 03:12:03,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114787029] [2022-04-15 03:12:03,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114787029] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 03:12:03,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 03:12:03,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 03:12:03,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209884702] [2022-04-15 03:12:03,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 03:12:03,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 24 [2022-04-15 03:12:03,574 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 03:12:03,574 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-04-15 03:12:03,592 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 03:12:03,593 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 03:12:03,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 03:12:03,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 03:12:03,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 03:12:03,594 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-04-15 03:12:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:03,645 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-04-15 03:12:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 03:12:03,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 24 [2022-04-15 03:12:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 03:12:03,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-04-15 03:12:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-04-15 03:12:03,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-04-15 03:12:03,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-04-15 03:12:03,650 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 38 transitions. [2022-04-15 03:12:03,684 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 03:12:03,686 INFO L225 Difference]: With dead ends: 40 [2022-04-15 03:12:03,686 INFO L226 Difference]: Without dead ends: 32 [2022-04-15 03:12:03,687 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 03:12:03,688 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 03:12:03,688 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 03:12:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-04-15 03:12:03,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-04-15 03:12:03,697 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 03:12:03,697 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 03:12:03,698 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 03:12:03,698 INFO L87 Difference]: Start difference. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 03:12:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:03,700 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-04-15 03:12:03,701 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-15 03:12:03,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 03:12:03,701 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 03:12:03,702 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states. [2022-04-15 03:12:03,702 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states. [2022-04-15 03:12:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:03,704 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-04-15 03:12:03,704 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-15 03:12:03,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 03:12:03,705 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 03:12:03,705 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 03:12:03,705 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 03:12:03,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 03:12:03,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-04-15 03:12:03,707 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2022-04-15 03:12:03,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 03:12:03,708 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-04-15 03:12:03,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-04-15 03:12:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-15 03:12:03,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-15 03:12:03,709 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 03:12:03,709 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, 1, 1] [2022-04-15 03:12:03,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-15 03:12:03,932 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 [2022-04-15 03:12:03,932 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 03:12:03,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 03:12:03,933 INFO L85 PathProgramCache]: Analyzing trace with hash -974402257, now seen corresponding path program 1 times [2022-04-15 03:12:03,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 03:12:03,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072475541] [2022-04-15 03:12:03,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 03:12:03,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 03:12:03,961 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 03:12:03,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571840549] [2022-04-15 03:12:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 03:12:03,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 03:12:03,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 03:12:03,983 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) [2022-04-15 03:12:04,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-15 03:12:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:04,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2022-04-15 03:12:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 03:12:04,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 03:12:07,061 INFO L272 TraceCheckUtils]: 0: Hoare triple {689#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:07,062 INFO L290 TraceCheckUtils]: 1: Hoare triple {689#true} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {689#true} is VALID [2022-04-15 03:12:07,062 INFO L290 TraceCheckUtils]: 2: Hoare triple {689#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:07,063 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {689#true} {689#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:07,063 INFO L272 TraceCheckUtils]: 4: Hoare triple {689#true} [66] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:07,063 INFO L290 TraceCheckUtils]: 5: Hoare triple {689#true} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {689#true} is VALID [2022-04-15 03:12:07,063 INFO L272 TraceCheckUtils]: 6: Hoare triple {689#true} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {689#true} is VALID [2022-04-15 03:12:07,064 INFO L290 TraceCheckUtils]: 7: Hoare triple {689#true} [73] assume_abort_if_notENTRY-->L13: 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] {689#true} is VALID [2022-04-15 03:12:07,064 INFO L290 TraceCheckUtils]: 8: Hoare triple {689#true} [76] L13-->L13-2: 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[] {689#true} is VALID [2022-04-15 03:12:07,064 INFO L290 TraceCheckUtils]: 9: Hoare triple {689#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:07,064 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {689#true} {689#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {689#true} is VALID [2022-04-15 03:12:07,065 INFO L272 TraceCheckUtils]: 11: Hoare triple {689#true} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {689#true} is VALID [2022-04-15 03:12:07,065 INFO L290 TraceCheckUtils]: 12: Hoare triple {689#true} [73] assume_abort_if_notENTRY-->L13: 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] {689#true} is VALID [2022-04-15 03:12:07,065 INFO L290 TraceCheckUtils]: 13: Hoare triple {689#true} [76] L13-->L13-2: 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[] {689#true} is VALID [2022-04-15 03:12:07,065 INFO L290 TraceCheckUtils]: 14: Hoare triple {689#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:07,065 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {689#true} {689#true} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {689#true} is VALID [2022-04-15 03:12:07,066 INFO L290 TraceCheckUtils]: 16: Hoare triple {689#true} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1)) InVars {main_~z~0=v_main_~z~0_6} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {689#true} is VALID [2022-04-15 03:12:07,066 INFO L290 TraceCheckUtils]: 17: Hoare triple {689#true} [78] L35-3-->L35-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {689#true} is VALID [2022-04-15 03:12:07,066 INFO L290 TraceCheckUtils]: 18: Hoare triple {689#true} [82] L35-1-->L36: Formula: (< |v_main_#t~post6_5| 20) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {689#true} is VALID [2022-04-15 03:12:07,066 INFO L272 TraceCheckUtils]: 19: Hoare triple {689#true} [84] L36-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {689#true} is VALID [2022-04-15 03:12:07,067 INFO L290 TraceCheckUtils]: 20: Hoare triple {689#true} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {754#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-15 03:12:07,068 INFO L290 TraceCheckUtils]: 21: Hoare triple {754#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [91] L16-->L16-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {758#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 03:12:07,068 INFO L290 TraceCheckUtils]: 22: Hoare triple {758#(not (= |__VERIFIER_assert_#in~cond| 0))} [94] L16-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {758#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 03:12:07,069 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {758#(not (= |__VERIFIER_assert_#in~cond| 0))} {689#true} [99] __VERIFIER_assertEXIT-->L36-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {765#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID [2022-04-15 03:12:07,070 INFO L290 TraceCheckUtils]: 24: Hoare triple {765#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} [87] L36-1-->L35-4: Formula: (not (< v_main_~c~0_3 v_main_~k~0_5)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} AuxVars[] AssignedVars[] {765#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID [2022-04-15 03:12:07,078 INFO L290 TraceCheckUtils]: 25: Hoare triple {765#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} [80] L35-4-->L49: Formula: (= v_main_~x~0_1 (* v_main_~x~0_2 (+ (- 1) v_main_~z~0_1))) InVars {main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_1} OutVars{main_~x~0=v_main_~x~0_1, main_~z~0=v_main_~z~0_1} AuxVars[] AssignedVars[main_~x~0] {772#(exists ((v_main_~x~0_11 Int) (main_~z~0 Int)) (and (= (+ (* v_main_~x~0_11 main_~z~0) 1) (+ v_main_~x~0_11 main_~y~0)) (= main_~x~0 (* v_main_~x~0_11 (+ (- 1) main_~z~0)))))} is VALID [2022-04-15 03:12:07,079 INFO L272 TraceCheckUtils]: 26: Hoare triple {772#(exists ((v_main_~x~0_11 Int) (main_~z~0 Int)) (and (= (+ (* v_main_~x~0_11 main_~z~0) 1) (+ v_main_~x~0_11 main_~y~0)) (= main_~x~0 (* v_main_~x~0_11 (+ (- 1) main_~z~0)))))} [83] L49-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (- 1) v_main_~y~0_8) v_main_~x~0_10 1) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {776#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 03:12:07,080 INFO L290 TraceCheckUtils]: 27: Hoare triple {776#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {780#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 03:12:07,081 INFO L290 TraceCheckUtils]: 28: Hoare triple {780#(<= 1 __VERIFIER_assert_~cond)} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {690#false} is VALID [2022-04-15 03:12:07,081 INFO L290 TraceCheckUtils]: 29: Hoare triple {690#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {690#false} is VALID [2022-04-15 03:12:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-15 03:12:07,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 03:12:09,513 INFO L290 TraceCheckUtils]: 29: Hoare triple {690#false} [92] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {690#false} is VALID [2022-04-15 03:12:09,513 INFO L290 TraceCheckUtils]: 28: Hoare triple {780#(<= 1 __VERIFIER_assert_~cond)} [90] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {690#false} is VALID [2022-04-15 03:12:09,514 INFO L290 TraceCheckUtils]: 27: Hoare triple {776#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {780#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 03:12:09,515 INFO L272 TraceCheckUtils]: 26: Hoare triple {796#(= (+ main_~x~0 1) main_~y~0)} [83] L49-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (- 1) v_main_~y~0_8) v_main_~x~0_10 1) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {776#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 03:12:09,516 INFO L290 TraceCheckUtils]: 25: Hoare triple {765#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} [80] L35-4-->L49: Formula: (= v_main_~x~0_1 (* v_main_~x~0_2 (+ (- 1) v_main_~z~0_1))) InVars {main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_1} OutVars{main_~x~0=v_main_~x~0_1, main_~z~0=v_main_~z~0_1} AuxVars[] AssignedVars[main_~x~0] {796#(= (+ main_~x~0 1) main_~y~0)} is VALID [2022-04-15 03:12:09,517 INFO L290 TraceCheckUtils]: 24: Hoare triple {765#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} [87] L36-1-->L35-4: Formula: (not (< v_main_~c~0_3 v_main_~k~0_5)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} AuxVars[] AssignedVars[] {765#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID [2022-04-15 03:12:09,518 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {758#(not (= |__VERIFIER_assert_#in~cond| 0))} {689#true} [99] __VERIFIER_assertEXIT-->L36-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {765#(= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0))} is VALID [2022-04-15 03:12:09,518 INFO L290 TraceCheckUtils]: 22: Hoare triple {758#(not (= |__VERIFIER_assert_#in~cond| 0))} [94] L16-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {758#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 03:12:09,519 INFO L290 TraceCheckUtils]: 21: Hoare triple {815#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [91] L16-->L16-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {758#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 03:12:09,520 INFO L290 TraceCheckUtils]: 20: Hoare triple {689#true} [86] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {815#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 03:12:09,520 INFO L272 TraceCheckUtils]: 19: Hoare triple {689#true} [84] L36-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~z~0_10 v_main_~x~0_9) (* (- 1) v_main_~x~0_9) (* (- 1) v_main_~y~0_7) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {689#true} is VALID [2022-04-15 03:12:09,521 INFO L290 TraceCheckUtils]: 18: Hoare triple {689#true} [82] L35-1-->L36: Formula: (< |v_main_#t~post6_5| 20) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {689#true} is VALID [2022-04-15 03:12:09,521 INFO L290 TraceCheckUtils]: 17: Hoare triple {689#true} [78] L35-3-->L35-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {689#true} is VALID [2022-04-15 03:12:09,521 INFO L290 TraceCheckUtils]: 16: Hoare triple {689#true} [74] L29-->L35-3: Formula: (and (= v_main_~c~0_2 1) (= v_main_~y~0_3 v_main_~z~0_6) (= v_main_~x~0_5 1)) InVars {main_~z~0=v_main_~z~0_6} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_6} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {689#true} is VALID [2022-04-15 03:12:09,521 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {689#true} {689#true} [97] assume_abort_if_notEXIT-->L29: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {689#true} is VALID [2022-04-15 03:12:09,522 INFO L290 TraceCheckUtils]: 14: Hoare triple {689#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:09,522 INFO L290 TraceCheckUtils]: 13: Hoare triple {689#true} [76] L13-->L13-2: 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[] {689#true} is VALID [2022-04-15 03:12:09,522 INFO L290 TraceCheckUtils]: 12: Hoare triple {689#true} [73] assume_abort_if_notENTRY-->L13: 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] {689#true} is VALID [2022-04-15 03:12:09,522 INFO L272 TraceCheckUtils]: 11: Hoare triple {689#true} [72] L28-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~k~0_7) 1 0)) InVars {main_~k~0=v_main_~k~0_7} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {689#true} is VALID [2022-04-15 03:12:09,523 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {689#true} {689#true} [96] assume_abort_if_notEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {689#true} is VALID [2022-04-15 03:12:09,523 INFO L290 TraceCheckUtils]: 9: Hoare triple {689#true} [79] L13-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:09,523 INFO L290 TraceCheckUtils]: 8: Hoare triple {689#true} [76] L13-->L13-2: 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[] {689#true} is VALID [2022-04-15 03:12:09,523 INFO L290 TraceCheckUtils]: 7: Hoare triple {689#true} [73] assume_abort_if_notENTRY-->L13: 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] {689#true} is VALID [2022-04-15 03:12:09,523 INFO L272 TraceCheckUtils]: 6: Hoare triple {689#true} [71] L28-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~z~0_9) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {689#true} is VALID [2022-04-15 03:12:09,524 INFO L290 TraceCheckUtils]: 5: Hoare triple {689#true} [69] mainENTRY-->L28: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_1 |v_main_#t~nondet5_2|) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_1, main_~z~0=v_main_~z~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~k~0, main_~z~0, main_~c~0, main_~y~0] {689#true} is VALID [2022-04-15 03:12:09,524 INFO L272 TraceCheckUtils]: 4: Hoare triple {689#true} [66] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:09,524 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {689#true} {689#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:09,524 INFO L290 TraceCheckUtils]: 2: Hoare triple {689#true} [70] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:09,524 INFO L290 TraceCheckUtils]: 1: Hoare triple {689#true} [67] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {689#true} is VALID [2022-04-15 03:12:09,525 INFO L272 TraceCheckUtils]: 0: Hoare triple {689#true} [65] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {689#true} is VALID [2022-04-15 03:12:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-15 03:12:09,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 03:12:09,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072475541] [2022-04-15 03:12:09,525 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 03:12:09,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571840549] [2022-04-15 03:12:09,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571840549] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-15 03:12:09,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-15 03:12:09,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-04-15 03:12:09,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707746602] [2022-04-15 03:12:09,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-15 03:12:09,527 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2022-04-15 03:12:09,527 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 03:12:09,528 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-15 03:12:09,560 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 03:12:09,560 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-15 03:12:09,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 03:12:09,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-15 03:12:09,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-15 03:12:09,562 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-15 03:12:09,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:09,777 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-04-15 03:12:09,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-15 03:12:09,777 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2022-04-15 03:12:09,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 03:12:09,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-15 03:12:09,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2022-04-15 03:12:09,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-15 03:12:09,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2022-04-15 03:12:09,780 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 28 transitions. [2022-04-15 03:12:09,825 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 03:12:09,825 INFO L225 Difference]: With dead ends: 32 [2022-04-15 03:12:09,825 INFO L226 Difference]: Without dead ends: 0 [2022-04-15 03:12:09,826 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-04-15 03:12:09,827 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 03:12:09,828 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 104 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2022-04-15 03:12:09,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-15 03:12:09,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-15 03:12:09,828 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 03:12:09,829 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) [2022-04-15 03:12:09,829 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) [2022-04-15 03:12:09,829 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) [2022-04-15 03:12:09,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:09,829 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 03:12:09,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 03:12:09,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 03:12:09,830 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 03:12:09,830 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. [2022-04-15 03:12:09,830 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. [2022-04-15 03:12:09,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 03:12:09,830 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 03:12:09,830 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 03:12:09,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 03:12:09,831 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 03:12:09,831 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 03:12:09,831 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 03:12:09,831 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) [2022-04-15 03:12:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-15 03:12:09,831 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-04-15 03:12:09,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 03:12:09,831 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-15 03:12:09,832 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-15 03:12:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 03:12:09,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 03:12:09,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 03:12:09,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-15 03:12:10,047 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 [2022-04-15 03:12:10,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-15 03:12:10,121 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-15 03:12:10,121 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-15 03:12:10,121 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-15 03:12:10,121 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-15 03:12:10,122 INFO L878 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (<= ~counter~0 0) [2022-04-15 03:12:10,122 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-15 03:12:10,122 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-15 03:12:10,122 INFO L885 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 12 14) the Hoare annotation is: true [2022-04-15 03:12:10,122 INFO L882 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-04-15 03:12:10,122 INFO L882 garLoopResultBuilder]: For program point L13-2(lines 12 14) no Hoare annotation was computed. [2022-04-15 03:12:10,122 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 12 14) no Hoare annotation was computed. [2022-04-15 03:12:10,122 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 23 51) the Hoare annotation is: (or (= ~counter~0 |old(~counter~0)|) (not (<= |old(~counter~0)| 0))) [2022-04-15 03:12:10,122 INFO L878 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (or (= ~counter~0 |old(~counter~0)|) (not (<= |old(~counter~0)| 0))) [2022-04-15 03:12:10,123 INFO L878 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (or (= ~counter~0 |old(~counter~0)|) (not (<= |old(~counter~0)| 0))) [2022-04-15 03:12:10,123 INFO L882 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-04-15 03:12:10,123 INFO L878 garLoopResultBuilder]: At program point L35-3(lines 35 45) the Hoare annotation is: (or (= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0)) (not (<= |old(~counter~0)| 0))) [2022-04-15 03:12:10,123 INFO L882 garLoopResultBuilder]: For program point L35-4(lines 35 45) no Hoare annotation was computed. [2022-04-15 03:12:10,123 INFO L882 garLoopResultBuilder]: For program point L35-1(lines 35 45) no Hoare annotation was computed. [2022-04-15 03:12:10,123 INFO L878 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (or (= (+ main_~x~0 1) main_~y~0) (not (<= |old(~counter~0)| 0))) [2022-04-15 03:12:10,123 INFO L878 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (or (= (+ (* main_~z~0 main_~x~0) 1) (+ main_~y~0 main_~x~0)) (not (<= |old(~counter~0)| 0))) [2022-04-15 03:12:10,123 INFO L882 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2022-04-15 03:12:10,124 INFO L882 garLoopResultBuilder]: For program point L36-1(lines 35 45) no Hoare annotation was computed. [2022-04-15 03:12:10,124 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 23 51) no Hoare annotation was computed. [2022-04-15 03:12:10,124 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 23 51) no Hoare annotation was computed. [2022-04-15 03:12:10,124 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 15 21) the Hoare annotation is: true [2022-04-15 03:12:10,124 INFO L882 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed. [2022-04-15 03:12:10,124 INFO L882 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2022-04-15 03:12:10,124 INFO L882 garLoopResultBuilder]: For program point L16-2(lines 15 21) no Hoare annotation was computed. [2022-04-15 03:12:10,124 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2022-04-15 03:12:10,125 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 21) no Hoare annotation was computed. [2022-04-15 03:12:10,127 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-04-15 03:12:10,129 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 03:12:10,133 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2022-04-15 03:12:10,134 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-04-15 03:12:10,135 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-04-15 03:12:10,135 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-04-15 03:12:10,135 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-15 03:12:10,135 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-15 03:12:10,135 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 03:12:10,135 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 03:12:10,135 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: L35-4 has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: L35-4 has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-15 03:12:10,136 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-15 03:12:10,136 INFO L163 areAnnotationChecker]: CFG has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-15 03:12:10,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 03:12:10 BasicIcfg [2022-04-15 03:12:10,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 03:12:10,147 INFO L158 Benchmark]: Toolchain (without parser) took 9184.56ms. Allocated memory was 190.8MB in the beginning and 283.1MB in the end (delta: 92.3MB). Free memory was 142.7MB in the beginning and 227.5MB in the end (delta: -84.8MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-04-15 03:12:10,147 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 03:12:10,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.17ms. Allocated memory is still 190.8MB. Free memory was 142.5MB in the beginning and 169.4MB in the end (delta: -26.8MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. [2022-04-15 03:12:10,148 INFO L158 Benchmark]: Boogie Preprocessor took 44.72ms. Allocated memory is still 190.8MB. Free memory was 169.1MB in the beginning and 167.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 03:12:10,148 INFO L158 Benchmark]: RCFGBuilder took 326.91ms. Allocated memory is still 190.8MB. Free memory was 167.8MB in the beginning and 157.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-15 03:12:10,148 INFO L158 Benchmark]: IcfgTransformer took 38.65ms. Allocated memory is still 190.8MB. Free memory was 157.0MB in the beginning and 155.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-15 03:12:10,149 INFO L158 Benchmark]: TraceAbstraction took 8469.83ms. Allocated memory was 190.8MB in the beginning and 283.1MB in the end (delta: 92.3MB). Free memory was 154.9MB in the beginning and 227.5MB in the end (delta: -72.5MB). Peak memory consumption was 21.1MB. Max. memory is 8.0GB. [2022-04-15 03:12:10,150 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 0.12ms. Allocated memory is still 190.8MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 295.17ms. Allocated memory is still 190.8MB. Free memory was 142.5MB in the beginning and 169.4MB in the end (delta: -26.8MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.72ms. Allocated memory is still 190.8MB. Free memory was 169.1MB in the beginning and 167.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 326.91ms. Allocated memory is still 190.8MB. Free memory was 167.8MB in the beginning and 157.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 38.65ms. Allocated memory is still 190.8MB. Free memory was 157.0MB in the beginning and 155.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 8469.83ms. Allocated memory was 190.8MB in the beginning and 283.1MB in the end (delta: 92.3MB). Free memory was 154.9MB in the beginning and 227.5MB in the end (delta: -72.5MB). Peak memory consumption was 21.1MB. 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: 18]: 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, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 290 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 8 IncrementalHoareTripleChecker+Unchecked, 189 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 101 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 18 PreInvPairs, 24 NumberOfFragments, 78 HoareAnnotationTreeSize, 18 FomulaSimplifications, 37 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 125 ConstructedInterpolants, 1 QuantifiedInterpolants, 272 SizeOfPredicates, 5 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 22/24 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 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: z * x + 1 == y + x || !(\old(counter) <= 0) RESULT: Ultimate proved your program to be correct! [2022-04-15 03:12:10,172 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...