/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/loop-zilu/benchmark37_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 06:52:54,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 06:52:54,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 06:52:54,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 06:52:54,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 06:52:54,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 06:52:54,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 06:52:54,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 06:52:54,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 06:52:54,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 06:52:54,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 06:52:54,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 06:52:54,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 06:52:54,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 06:52:54,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 06:52:54,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 06:52:54,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 06:52:54,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 06:52:54,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 06:52:54,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 06:52:54,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 06:52:54,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 06:52:54,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 06:52:54,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 06:52:54,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 06:52:54,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 06:52:54,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 06:52:54,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 06:52:54,083 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 06:52:54,096 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 06:52:54,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 06:52:54,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 06:52:54,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 06:52:54,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 06:52:54,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 06:52:54,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 06:52:54,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 06:52:54,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 06:52:54,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 06:52:54,099 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 06:52:54,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 06:52:54,100 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 06:52:54,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 06:52:54,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 06:52:54,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 06:52:54,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 06:52:54,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 06:52:54,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 06:52:54,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 06:52:54,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 06:52:54,103 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 06:52:54,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 06:52:54,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 06:52:54,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 06:52:54,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 06:52:54,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 06:52:54,431 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 06:52:54,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark37_conjunctive.i [2021-05-06 06:52:54,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa8fca4d/5a9de374dcb848c79c1b243f747a2177/FLAG0f6f69a77 [2021-05-06 06:52:54,878 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 06:52:54,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark37_conjunctive.i [2021-05-06 06:52:54,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa8fca4d/5a9de374dcb848c79c1b243f747a2177/FLAG0f6f69a77 [2021-05-06 06:52:54,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa8fca4d/5a9de374dcb848c79c1b243f747a2177 [2021-05-06 06:52:54,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 06:52:54,902 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 06:52:54,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 06:52:54,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 06:52:54,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 06:52:54,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 06:52:54" (1/1) ... [2021-05-06 06:52:54,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3b0346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:54, skipping insertion in model container [2021-05-06 06:52:54,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 06:52:54" (1/1) ... [2021-05-06 06:52:54,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 06:52:54,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 06:52:55,036 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark37_conjunctive.i[873,886] [2021-05-06 06:52:55,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 06:52:55,051 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 06:52:55,062 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark37_conjunctive.i[873,886] [2021-05-06 06:52:55,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 06:52:55,107 INFO L208 MainTranslator]: Completed translation [2021-05-06 06:52:55,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55 WrapperNode [2021-05-06 06:52:55,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 06:52:55,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 06:52:55,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 06:52:55,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 06:52:55,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55" (1/1) ... [2021-05-06 06:52:55,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55" (1/1) ... [2021-05-06 06:52:55,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55" (1/1) ... [2021-05-06 06:52:55,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55" (1/1) ... [2021-05-06 06:52:55,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55" (1/1) ... [2021-05-06 06:52:55,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55" (1/1) ... [2021-05-06 06:52:55,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55" (1/1) ... [2021-05-06 06:52:55,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 06:52:55,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 06:52:55,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 06:52:55,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 06:52:55,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 06:52:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 06:52:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 06:52:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 06:52:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 06:52:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 06:52:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 06:52:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-06 06:52:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-06 06:52:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 06:52:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 06:52:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 06:52:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-05-06 06:52:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 06:52:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 06:52:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 06:52:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 06:52:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 06:52:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 06:52:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 06:52:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 06:52:55,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 06:52:55,522 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 06:52:55,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:52:55 BoogieIcfgContainer [2021-05-06 06:52:55,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 06:52:55,524 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 06:52:55,524 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 06:52:55,524 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 06:52:55,527 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:52:55" (1/1) ... [2021-05-06 06:52:55,592 WARN L240 tifierPushTermWalker]: treesize reduction 7, result has 87.7 percent of original size [2021-05-06 06:52:55,714 WARN L245 tifierPushTermWalker]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-05-06 06:52:55,775 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 06:52:55,775 INFO L91 elerationTransformer]: Accelerated Formula: (and (= v_main_~y~0_2 (+ v_main_~y~0_1 1)) (= v_main_~x~0_3 (+ v_main_~x~0_2 1)) (< 0 v_main_~x~0_3)) InVars {main_~x~0=v_main_~x~0_3, main_~y~0=v_main_~y~0_2} OutVars{main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_1, main_#t~post5=|v_main_#t~post5_1|, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_#t~post5, main_#t~post6] to Formula: (or (and (= v_main_~x~0_3 v_main_~x~0_2) (= v_main_~y~0_2 v_main_~y~0_1) (= v_itFin_1 0) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) (<= v_main_~x~0_3 0) (= |v_main_#t~post5_3| |v_main_#t~post5_1|)) (and (= v_main_~x~0_3 (+ v_itFin_1 v_main_~x~0_2)) (< 0 v_itFin_1) (= v_main_~y~0_2 (+ v_itFin_1 v_main_~y~0_1)) (< v_itFin_1 (+ v_main_~x~0_3 1)))) InVars {main_~y~0=v_main_~y~0_2, main_#t~post5=|v_main_#t~post5_3|, main_~x~0=v_main_~x~0_3, main_#t~post6=|v_main_#t~post6_3|} OutVars{main_~y~0=v_main_~y~0_1, main_#t~post5=|v_main_#t~post5_1|, main_~x~0=v_main_~x~0_2, main_#t~post6=|v_main_#t~post6_1|} AuxVars[v_itFin_1] AssignedVars[main_~x~0, main_~y~0, main_#t~post5, main_#t~post6] [2021-05-06 06:52:55,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 06:52:55 BasicIcfg [2021-05-06 06:52:55,781 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 06:52:55,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 06:52:55,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 06:52:55,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 06:52:55,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 06:52:54" (1/4) ... [2021-05-06 06:52:55,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f760fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 06:52:55, skipping insertion in model container [2021-05-06 06:52:55,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:52:55" (2/4) ... [2021-05-06 06:52:55,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f760fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 06:52:55, skipping insertion in model container [2021-05-06 06:52:55,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:52:55" (3/4) ... [2021-05-06 06:52:55,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f760fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 06:52:55, skipping insertion in model container [2021-05-06 06:52:55,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 06:52:55" (4/4) ... [2021-05-06 06:52:55,788 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark37_conjunctive.iJordan [2021-05-06 06:52:55,792 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 06:52:55,795 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 06:52:55,807 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 06:52:55,821 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 06:52:55,822 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 06:52:55,822 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 06:52:55,822 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 06:52:55,822 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 06:52:55,822 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 06:52:55,822 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 06:52:55,822 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 06:52:55,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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) [2021-05-06 06:52:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-06 06:52:55,840 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:52:55,840 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:52:55,841 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:52:55,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:52:55,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times [2021-05-06 06:52:55,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:52:55,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405165656] [2021-05-06 06:52:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:52:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:52:55,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:52:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:52:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:52:56,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:52:56,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405165656] [2021-05-06 06:52:56,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405165656] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:52:56,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 06:52:56,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 06:52:56,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938558307] [2021-05-06 06:52:56,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 06:52:56,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:52:56,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 06:52:56,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 06:52:56,033 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-05-06 06:52:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:52:56,086 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-05-06 06:52:56,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 06:52:56,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 12 [2021-05-06 06:52:56,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:52:56,092 INFO L225 Difference]: With dead ends: 20 [2021-05-06 06:52:56,093 INFO L226 Difference]: Without dead ends: 13 [2021-05-06 06:52:56,094 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 06:52:56,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-06 06:52:56,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-06 06:52:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 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) [2021-05-06 06:52:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-06 06:52:56,117 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2021-05-06 06:52:56,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:52:56,117 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-06 06:52:56,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-05-06 06:52:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-06 06:52:56,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-06 06:52:56,118 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:52:56,118 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:52:56,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 06:52:56,119 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:52:56,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:52:56,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times [2021-05-06 06:52:56,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:52:56,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37341978] [2021-05-06 06:52:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:52:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:52:56,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:52:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:52:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:52:56,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:52:56,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37341978] [2021-05-06 06:52:56,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37341978] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:52:56,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 06:52:56,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-06 06:52:56,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231818233] [2021-05-06 06:52:56,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-06 06:52:56,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:52:56,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-06 06:52:56,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-06 06:52:56,285 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2021-05-06 06:52:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:52:56,411 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-05-06 06:52:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 06:52:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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 12 [2021-05-06 06:52:56,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:52:56,411 INFO L225 Difference]: With dead ends: 11 [2021-05-06 06:52:56,412 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 06:52:56,412 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.7ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-05-06 06:52:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 06:52:56,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 06:52:56,413 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) [2021-05-06 06:52:56,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 06:52:56,413 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-05-06 06:52:56,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:52:56,413 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 06:52:56,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2021-05-06 06:52:56,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 06:52:56,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 06:52:56,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 06:52:56,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 06:52:56 BasicIcfg [2021-05-06 06:52:56,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 06:52:56,418 INFO L168 Benchmark]: Toolchain (without parser) took 1515.93 ms. Allocated memory is still 178.3 MB. Free memory was 143.4 MB in the beginning and 133.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.6 MB. Max. memory is 8.0 GB. [2021-05-06 06:52:56,418 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 178.3 MB. Free memory is still 160.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 06:52:56,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.26 ms. Allocated memory is still 178.3 MB. Free memory was 143.2 MB in the beginning and 162.8 MB in the end (delta: -19.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2021-05-06 06:52:56,419 INFO L168 Benchmark]: Boogie Preprocessor took 49.58 ms. Allocated memory is still 178.3 MB. Free memory was 162.8 MB in the beginning and 161.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 06:52:56,419 INFO L168 Benchmark]: RCFGBuilder took 364.31 ms. Allocated memory is still 178.3 MB. Free memory was 161.3 MB in the beginning and 147.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-06 06:52:56,420 INFO L168 Benchmark]: IcfgTransformer took 257.76 ms. Allocated memory is still 178.3 MB. Free memory was 147.2 MB in the beginning and 129.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-05-06 06:52:56,420 INFO L168 Benchmark]: TraceAbstraction took 634.43 ms. Allocated memory is still 178.3 MB. Free memory was 129.4 MB in the beginning and 133.7 MB in the end (delta: -4.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 06:52:56,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 178.3 MB. Free memory is still 160.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 204.26 ms. Allocated memory is still 178.3 MB. Free memory was 143.2 MB in the beginning and 162.8 MB in the end (delta: -19.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.58 ms. Allocated memory is still 178.3 MB. Free memory was 162.8 MB in the beginning and 161.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 364.31 ms. Allocated memory is still 178.3 MB. Free memory was 161.3 MB in the beginning and 147.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 257.76 ms. Allocated memory is still 178.3 MB. Free memory was 147.2 MB in the beginning and 129.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 634.43 ms. Allocated memory is still 178.3 MB. Free memory was 129.4 MB in the beginning and 133.7 MB in the end (delta: -4.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 594.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.1ms, AutomataDifference: 204.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 18 SDslu, 24 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 12.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.3ms SsaConstructionTime, 38.4ms SatisfiabilityAnalysisTime, 199.2ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...