/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/vnew1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 04:24:24,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 04:24:24,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 04:24:24,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 04:24:24,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 04:24:24,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 04:24:24,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 04:24:24,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 04:24:24,857 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 04:24:24,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 04:24:24,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 04:24:24,859 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 04:24:24,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 04:24:24,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 04:24:24,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 04:24:24,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 04:24:24,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 04:24:24,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 04:24:24,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 04:24:24,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 04:24:24,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 04:24:24,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 04:24:24,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 04:24:24,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 04:24:24,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 04:24:24,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 04:24:24,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 04:24:24,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 04:24:24,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 04:24:24,861 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 04:24:24,861 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 04:24:25,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 04:24:25,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 04:24:25,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 04:24:25,088 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 04:24:25,089 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 04:24:25,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/vnew1.c [2022-03-20 04:24:25,129 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1aedb17/fdb473e4a6cb4edc829934561e852028/FLAG738396671 [2022-03-20 04:24:25,483 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 04:24:25,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew1.c [2022-03-20 04:24:25,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1aedb17/fdb473e4a6cb4edc829934561e852028/FLAG738396671 [2022-03-20 04:24:25,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1aedb17/fdb473e4a6cb4edc829934561e852028 [2022-03-20 04:24:25,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 04:24:25,497 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 04:24:25,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 04:24:25,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 04:24:25,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 04:24:25,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656e3430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25, skipping insertion in model container [2022-03-20 04:24:25,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 04:24:25,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 04:24:25,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew1.c[403,416] [2022-03-20 04:24:25,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 04:24:25,641 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 04:24:25,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew1.c[403,416] [2022-03-20 04:24:25,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 04:24:25,664 INFO L208 MainTranslator]: Completed translation [2022-03-20 04:24:25,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25 WrapperNode [2022-03-20 04:24:25,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 04:24:25,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 04:24:25,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 04:24:25,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 04:24:25,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 04:24:25,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 04:24:25,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 04:24:25,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 04:24:25,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 04:24:25,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 04:24:25,711 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) [2022-03-20 04:24:25,718 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 [2022-03-20 04:24:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 04:24:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 04:24:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 04:24:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 04:24:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 04:24:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 04:24:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 04:24:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 04:24:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 04:24:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 04:24:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 04:24:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 04:24:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-03-20 04:24:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 04:24:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 04:24:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 04:24:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 04:24:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 04:24:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 04:24:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 04:24:25,783 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 04:24:25,784 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 04:24:25,894 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 04:24:25,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 04:24:25,900 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-20 04:24:25,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:24:25 BoogieIcfgContainer [2022-03-20 04:24:25,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 04:24:25,902 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 04:24:25,902 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 04:24:25,903 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 04:24:25,905 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:24:25" (1/1) ... [2022-03-20 04:24:25,906 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 04:24:26,144 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 04:24:26,149 INFO L91 elerationTransformer]: Accelerated Formula: (and (= v_main_~i~0_4 (+ v_main_~i~0_5 3)) (= (+ v_main_~k~0_6 1) v_main_~k~0_7) (< (mod v_main_~i~0_5 4294967296) (mod v_main_~n~0_9 4294967296))) InVars {main_~k~0=v_main_~k~0_7, main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_9} OutVars{main_~k~0=v_main_~k~0_6, main_~i~0=v_main_~i~0_4, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_9} AuxVars[] AssignedVars[main_~k~0, main_~i~0, main_#t~post5] to Formula: (let ((.cse1 (mod v_main_~n~0_9 4294967296)) (.cse0 (mod v_main_~i~0_5 4294967296))) (or (and (< v_main_~k~0_6 v_main_~k~0_7) (forall ((v_it_1 Int)) (or (< (mod (+ v_main_~i~0_5 (* v_it_1 3)) 4294967296) (mod v_main_~n~0_9 4294967296)) (not (<= (+ v_main_~k~0_6 v_it_1 1) v_main_~k~0_7)) (not (<= 1 v_it_1)))) (= v_main_~i~0_4 (+ (* v_main_~k~0_6 (- 3)) v_main_~i~0_5 (* v_main_~k~0_7 3))) (< .cse0 .cse1)) (and (= |v_main_#t~post5_3| |v_main_#t~post5_1|) (= v_main_~k~0_7 v_main_~k~0_6) (<= .cse1 .cse0) (= v_main_~i~0_4 v_main_~i~0_5)))) InVars {main_~i~0=v_main_~i~0_5, main_#t~post5=|v_main_#t~post5_3|, main_~n~0=v_main_~n~0_9, main_~k~0=v_main_~k~0_7} OutVars{main_~i~0=v_main_~i~0_4, main_#t~post5=|v_main_#t~post5_1|, main_~n~0=v_main_~n~0_9, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~k~0, main_~i~0, main_#t~post5] [2022-03-20 04:24:26,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 04:24:26 BasicIcfg [2022-03-20 04:24:26,154 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 04:24:26,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 04:24:26,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 04:24:26,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 04:24:26,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 04:24:25" (1/4) ... [2022-03-20 04:24:26,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5849df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 04:24:26, skipping insertion in model container [2022-03-20 04:24:26,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:24:25" (2/4) ... [2022-03-20 04:24:26,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5849df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 04:24:26, skipping insertion in model container [2022-03-20 04:24:26,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:24:25" (3/4) ... [2022-03-20 04:24:26,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5849df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 04:24:26, skipping insertion in model container [2022-03-20 04:24:26,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 04:24:26" (4/4) ... [2022-03-20 04:24:26,164 INFO L111 eAbstractionObserver]: Analyzing ICFG vnew1.cJordan [2022-03-20 04:24:26,167 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 04:24:26,167 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 04:24:26,202 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 04:24:26,208 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 04:24:26,208 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 04:24:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 04:24:26,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 04:24:26,222 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:24:26,222 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:24:26,223 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:24:26,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:24:26,226 INFO L85 PathProgramCache]: Analyzing trace with hash 565582179, now seen corresponding path program 1 times [2022-03-20 04:24:26,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:24:26,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048487619] [2022-03-20 04:24:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:24:26,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:24:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:24:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:24:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:24:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:24:26,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:24:26,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048487619] [2022-03-20 04:24:26,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048487619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 04:24:26,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 04:24:26,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 04:24:26,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204031387] [2022-03-20 04:24:26,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 04:24:26,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 04:24:26,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:24:26,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 04:24:26,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 04:24:26,383 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:24:26,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:24:26,404 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-03-20 04:24:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 04:24:26,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-03-20 04:24:26,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:24:26,411 INFO L225 Difference]: With dead ends: 23 [2022-03-20 04:24:26,411 INFO L226 Difference]: Without dead ends: 18 [2022-03-20 04:24:26,412 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 04:24:26,414 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:24:26,415 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 25 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 04:24:26,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-03-20 04:24:26,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-03-20 04:24:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 04:24:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-03-20 04:24:26,434 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 14 [2022-03-20 04:24:26,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:24:26,434 INFO L478 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-03-20 04:24:26,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:24:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-03-20 04:24:26,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 04:24:26,435 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:24:26,435 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:24:26,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 04:24:26,435 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:24:26,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:24:26,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1453085860, now seen corresponding path program 1 times [2022-03-20 04:24:26,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:24:26,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063809392] [2022-03-20 04:24:26,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:24:26,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:24:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:24:26,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:24:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:24:26,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:24:26,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:24:26,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063809392] [2022-03-20 04:24:26,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063809392] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 04:24:26,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 04:24:26,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 04:24:26,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826495693] [2022-03-20 04:24:26,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 04:24:26,583 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 04:24:26,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:24:26,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 04:24:26,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-20 04:24:26,584 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:24:26,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:24:26,677 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-03-20 04:24:26,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 04:24:26,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-03-20 04:24:26,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:24:26,679 INFO L225 Difference]: With dead ends: 21 [2022-03-20 04:24:26,679 INFO L226 Difference]: Without dead ends: 19 [2022-03-20 04:24:26,679 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-20 04:24:26,680 INFO L913 BasicCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:24:26,680 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 27 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 1 Unchecked, 0.0s Time] [2022-03-20 04:24:26,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-03-20 04:24:26,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-03-20 04:24:26,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 04:24:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-03-20 04:24:26,683 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2022-03-20 04:24:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:24:26,684 INFO L478 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-03-20 04:24:26,684 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:24:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-03-20 04:24:26,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-20 04:24:26,684 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:24:26,684 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:24:26,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 04:24:26,685 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:24:26,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:24:26,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1975996661, now seen corresponding path program 1 times [2022-03-20 04:24:26,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:24:26,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850352196] [2022-03-20 04:24:26,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:24:26,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:24:26,704 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~n~0_5 (* (- 4294967296) (div main_~n~0_5 4294967296)) (* (- 1) main_~i~0_6) (* (- 3) .v_it_1.0) (* 4294967296 (div (+ main_~i~0_6 (* 3 .v_it_1.0)) 4294967296))) 0)) [2022-03-20 04:24:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:24:26,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:24:26,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850352196] [2022-03-20 04:24:26,783 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Interpolation not supported for quantified formulae. [2022-03-20 04:24:26,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853515761] [2022-03-20 04:24:26,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:24:26,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 04:24:26,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 04:24:26,786 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) [2022-03-20 04:24:26,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process