/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-lit/jm2006.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 06:02:11,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 06:02:11,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 06:02:11,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 06:02:11,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 06:02:11,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 06:02:11,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 06:02:11,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 06:02:11,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 06:02:11,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 06:02:11,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 06:02:11,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 06:02:11,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 06:02:11,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 06:02:11,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 06:02:11,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 06:02:11,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 06:02:11,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 06:02:11,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 06:02:11,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 06:02:11,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 06:02:11,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 06:02:11,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 06:02:11,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 06:02:11,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 06:02:11,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 06:02:11,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 06:02:11,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 06:02:11,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 06:02:11,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 06:02:11,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 06:02:11,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 06:02:11,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 06:02:11,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 06:02:11,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 06:02:11,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 06:02:11,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 06:02:11,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 06:02:11,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 06:02:11,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 06:02:11,391 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 06:02:11,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 06:02:11,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 06:02:11,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 06:02:11,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 06:02:11,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 06:02:11,657 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 06:02:11,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.i [2021-05-06 06:02:11,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944ed6939/41ba31747b5944f495fc01c4c219a40a/FLAGecc5b3acf [2021-05-06 06:02:12,035 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 06:02:12,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.i [2021-05-06 06:02:12,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944ed6939/41ba31747b5944f495fc01c4c219a40a/FLAGecc5b3acf [2021-05-06 06:02:12,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944ed6939/41ba31747b5944f495fc01c4c219a40a [2021-05-06 06:02:12,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 06:02:12,476 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 06:02:12,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 06:02:12,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 06:02:12,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 06:02:12,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:12,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fd01f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12, skipping insertion in model container [2021-05-06 06:02:12,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:12,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 06:02:12,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 06:02:12,573 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-lit/jm2006.i[895,908] [2021-05-06 06:02:12,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 06:02:12,584 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 06:02:12,593 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-lit/jm2006.i[895,908] [2021-05-06 06:02:12,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 06:02:12,604 INFO L208 MainTranslator]: Completed translation [2021-05-06 06:02:12,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12 WrapperNode [2021-05-06 06:02:12,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 06:02:12,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 06:02:12,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 06:02:12,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 06:02:12,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:12,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:12,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:12,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:12,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:12,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:12,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:12,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 06:02:12,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 06:02:12,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 06:02:12,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 06:02:12,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12" (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 06:02:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 06:02:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 06:02:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 06:02:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 06:02:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 06:02:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 06:02:12,712 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 06:02:12,712 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 06:02:12,712 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-06 06:02:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-06 06:02:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 06:02:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 06:02:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 06:02:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 06:02:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 06:02:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 06:02:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 06:02:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 06:02:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 06:02:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 06:02:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 06:02:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 06:02:12,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 06:02:12,942 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 06:02:12,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:02:12 BoogieIcfgContainer [2021-05-06 06:02:12,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 06:02:12,944 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 06:02:12,944 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 06:02:12,944 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 06:02:12,946 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:02:12" (1/1) ... [2021-05-06 06:02:13,050 WARN L240 tifierPushTermWalker]: treesize reduction 10, result has 83.9 percent of original size [2021-05-06 06:02:13,097 WARN L245 tifierPushTermWalker]: treesize reduction 10, result has 83.9 percent of original size 52 [2021-05-06 06:02:13,137 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 06:02:13,138 INFO L91 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~x~0_3 1) v_main_~x~0_4) (= v_main_~y~0_4 (+ v_main_~y~0_3 1)) (not (= v_main_~x~0_4 0))) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_4} OutVars{main_~x~0=v_main_~x~0_3, main_~y~0=v_main_~y~0_3, 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: (let ((.cse0 (= v_main_~x~0_4 0))) (or (and (= v_main_~y~0_4 (+ v_itFin_1 v_main_~y~0_3)) (< 0 v_itFin_1) (or (< v_itFin_1 (+ v_main_~x~0_4 1)) (< v_main_~x~0_4 1)) (= v_main_~x~0_4 (+ v_itFin_1 v_main_~x~0_3)) (not .cse0)) (and (= v_main_~y~0_4 v_main_~y~0_3) (= v_itFin_1 0) (= v_main_~x~0_4 v_main_~x~0_3) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) .cse0 (= |v_main_#t~post5_3| |v_main_#t~post5_1|)))) InVars {main_~y~0=v_main_~y~0_4, main_#t~post5=|v_main_#t~post5_3|, main_~x~0=v_main_~x~0_4, main_#t~post6=|v_main_#t~post6_3|} OutVars{main_~y~0=v_main_~y~0_3, main_#t~post5=|v_main_#t~post5_1|, main_~x~0=v_main_~x~0_3, 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 06:02:13,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 06:02:13 BasicIcfg [2021-05-06 06:02:13,142 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 06:02:13,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 06:02:13,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 06:02:13,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 06:02:13,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 06:02:12" (1/4) ... [2021-05-06 06:02:13,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0a30db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 06:02:13, skipping insertion in model container [2021-05-06 06:02:13,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:02:12" (2/4) ... [2021-05-06 06:02:13,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0a30db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 06:02:13, skipping insertion in model container [2021-05-06 06:02:13,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:02:12" (3/4) ... [2021-05-06 06:02:13,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0a30db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 06:02:13, skipping insertion in model container [2021-05-06 06:02:13,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 06:02:13" (4/4) ... [2021-05-06 06:02:13,147 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.iJordan [2021-05-06 06:02:13,151 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 06:02:13,153 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 06:02:13,164 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 06:02:13,175 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 06:02:13,176 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 06:02:13,176 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 06:02:13,176 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 06:02:13,176 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 06:02:13,176 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 06:02:13,176 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 06:02:13,176 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 06:02:13,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 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 06:02:13,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-06 06:02:13,197 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:02:13,198 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:02:13,198 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:02:13,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:02:13,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1752834070, now seen corresponding path program 1 times [2021-05-06 06:02:13,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:02:13,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011679097] [2021-05-06 06:02:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:02:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:13,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:02:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:13,312 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 06:02:13,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:02:13,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011679097] [2021-05-06 06:02:13,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011679097] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:02:13,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 06:02:13,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 06:02:13,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660058469] [2021-05-06 06:02:13,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 06:02:13,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:02:13,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 06:02:13,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 06:02:13,326 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 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 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 06:02:13,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:02:13,350 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-05-06 06:02:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 06:02:13,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 13 [2021-05-06 06:02:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:02:13,356 INFO L225 Difference]: With dead ends: 21 [2021-05-06 06:02:13,356 INFO L226 Difference]: Without dead ends: 14 [2021-05-06 06:02:13,357 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 06:02:13,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-05-06 06:02:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-05-06 06:02:13,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 06:02:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-06 06:02:13,376 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 13 [2021-05-06 06:02:13,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:02:13,376 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-06 06:02:13,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 06:02:13,376 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-06 06:02:13,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-06 06:02:13,377 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:02:13,378 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:02:13,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 06:02:13,378 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:02:13,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:02:13,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1781463221, now seen corresponding path program 1 times [2021-05-06 06:02:13,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:02:13,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542976017] [2021-05-06 06:02:13,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:02:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:13,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:02:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:13,518 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 06:02:13,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:02:13,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542976017] [2021-05-06 06:02:13,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542976017] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:02:13,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 06:02:13,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-06 06:02:13,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041117571] [2021-05-06 06:02:13,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 06:02:13,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:02:13,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 06:02:13,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-06 06:02:13,521 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 06:02:13,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:02:13,676 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-05-06 06:02:13,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-06 06:02:13,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 13 [2021-05-06 06:02:13,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:02:13,677 INFO L225 Difference]: With dead ends: 19 [2021-05-06 06:02:13,678 INFO L226 Difference]: Without dead ends: 15 [2021-05-06 06:02:13,679 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 198.1ms TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-05-06 06:02:13,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-06 06:02:13,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-06 06:02:13,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 06:02:13,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-05-06 06:02:13,682 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2021-05-06 06:02:13,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:02:13,682 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-05-06 06:02:13,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 06:02:13,683 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-05-06 06:02:13,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-06 06:02:13,685 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:02:13,686 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:02:13,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 06:02:13,687 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:02:13,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:02:13,691 INFO L82 PathProgramCache]: Analyzing trace with hash 219122817, now seen corresponding path program 1 times [2021-05-06 06:02:13,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:02:13,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017184810] [2021-05-06 06:02:13,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:02:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:13,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:02:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:13,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:13,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:02:13,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017184810] [2021-05-06 06:02:13,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017184810] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:13,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160167248] [2021-05-06 06:02:13,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:02:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:13,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-06 06:02:13,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:02:14,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:14,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:14,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:14,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:14,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:14,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:14,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160167248] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:14,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:02:14,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-05-06 06:02:14,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710497962] [2021-05-06 06:02:14,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-06 06:02:14,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:02:14,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-06 06:02:14,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-05-06 06:02:14,157 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:14,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:02:14,407 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-05-06 06:02:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 06:02:14,407 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-05-06 06:02:14,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:02:14,407 INFO L225 Difference]: With dead ends: 13 [2021-05-06 06:02:14,407 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 06:02:14,407 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 364.1ms TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-05-06 06:02:14,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 06:02:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 06:02:14,408 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 06:02:14,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 06:02:14,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-05-06 06:02:14,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:02:14,408 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 06:02:14,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:14,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 06:02:14,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 06:02:14,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-06 06:02:14,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 06:02:14 BasicIcfg [2021-05-06 06:02:14,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 06:02:14,633 INFO L168 Benchmark]: Toolchain (without parser) took 2154.74 ms. Allocated memory was 220.2 MB in the beginning and 264.2 MB in the end (delta: 44.0 MB). Free memory was 186.5 MB in the beginning and 172.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. [2021-05-06 06:02:14,633 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 220.2 MB. Free memory is still 202.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 06:02:14,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.28 ms. Allocated memory is still 220.2 MB. Free memory was 186.3 MB in the beginning and 176.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-06 06:02:14,636 INFO L168 Benchmark]: Boogie Preprocessor took 39.69 ms. Allocated memory is still 220.2 MB. Free memory was 176.7 MB in the beginning and 204.2 MB in the end (delta: -27.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-06 06:02:14,636 INFO L168 Benchmark]: RCFGBuilder took 297.57 ms. Allocated memory is still 220.2 MB. Free memory was 204.2 MB in the beginning and 189.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-06 06:02:14,636 INFO L168 Benchmark]: IcfgTransformer took 198.80 ms. Allocated memory is still 220.2 MB. Free memory was 189.6 MB in the beginning and 174.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-06 06:02:14,638 INFO L168 Benchmark]: TraceAbstraction took 1487.03 ms. Allocated memory was 220.2 MB in the beginning and 264.2 MB in the end (delta: 44.0 MB). Free memory was 174.3 MB in the beginning and 172.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. [2021-05-06 06:02:14,639 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 0.10 ms. Allocated memory is still 220.2 MB. Free memory is still 202.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 126.28 ms. Allocated memory is still 220.2 MB. Free memory was 186.3 MB in the beginning and 176.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.69 ms. Allocated memory is still 220.2 MB. Free memory was 176.7 MB in the beginning and 204.2 MB in the end (delta: -27.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 297.57 ms. Allocated memory is still 220.2 MB. Free memory was 204.2 MB in the beginning and 189.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 198.80 ms. Allocated memory is still 220.2 MB. Free memory was 189.6 MB in the beginning and 174.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1487.03 ms. Allocated memory was 220.2 MB in the beginning and 264.2 MB in the end (delta: 44.0 MB). Free memory was 174.3 MB in the beginning and 172.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1451.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 18.0ms, AutomataDifference: 449.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 36 SDtfs, 40 SDslu, 55 SDs, 0 SdLazy, 90 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 577.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.2ms SsaConstructionTime, 66.2ms SatisfiabilityAnalysisTime, 541.0ms InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 319 SizeOfPredicates, 4 NumberOfNonLiveVariables, 87 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...