/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.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 00:31:46,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 00:31:46,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 00:31:46,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-05 00:31:46,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 00:31:46,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 00:31:46,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 00:31:46,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 00:31:46,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 00:31:46,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 00:31:46,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 00:31:46,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 00:31:46,615 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 00:31:46,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 00:31:46,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 00:31:46,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 00:31:46,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 00:31:46,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-05 00:31:46,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 00:31:46,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 00:31:46,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 00:31:46,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 00:31:46,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 00:31:46,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 00:31:46,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 00:31:46,648 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 00:31:46,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 00:31:46,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 00:31:46,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 00:31:46,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 00:31:46,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 00:31:46,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 00:31:46,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 00:31:46,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 00:31:46,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 00:31:46,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 00:31:46,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 00:31:46,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 00:31:46,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 00:31:46,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 00:31:46,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 00:31:46,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 00:31:46,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 00:31:46,652 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 00:31:46,652 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 00:31:46,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 00:31:46,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 00:31:46,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 00:31:46,892 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 00:31:46,893 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 00:31:46,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2022-04-05 00:31:46,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f9731a2/0ccd7d59beed41faa01ead6f7b043a27/FLAG9b5057daf [2022-04-05 00:31:47,277 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 00:31:47,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2022-04-05 00:31:47,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f9731a2/0ccd7d59beed41faa01ead6f7b043a27/FLAG9b5057daf [2022-04-05 00:31:47,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f9731a2/0ccd7d59beed41faa01ead6f7b043a27 [2022-04-05 00:31:47,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 00:31:47,298 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 00:31:47,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 00:31:47,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 00:31:47,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 00:31:47,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fe821f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47, skipping insertion in model container [2022-04-05 00:31:47,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 00:31:47,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 00:31:47,468 WARN L230 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.c.i.v+cfa-reducer.c[1110,1123] [2022-04-05 00:31:47,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 00:31:47,476 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 00:31:47,486 WARN L230 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.c.i.v+cfa-reducer.c[1110,1123] [2022-04-05 00:31:47,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 00:31:47,495 INFO L208 MainTranslator]: Completed translation [2022-04-05 00:31:47,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47 WrapperNode [2022-04-05 00:31:47,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 00:31:47,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 00:31:47,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 00:31:47,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 00:31:47,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 00:31:47,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 00:31:47,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 00:31:47,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 00:31:47,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 00:31:47,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 00:31:47,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-05 00:31:47,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-05 00:31:47,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 00:31:47,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 00:31:47,576 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 00:31:47,576 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-05 00:31:47,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 00:31:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 00:31:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 00:31:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 00:31:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 00:31:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 00:31:47,637 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 00:31:47,639 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 00:31:47,740 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 00:31:47,745 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 00:31:47,745 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-05 00:31:47,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:31:47 BoogieIcfgContainer [2022-04-05 00:31:47,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 00:31:47,747 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 00:31:47,747 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 00:31:47,748 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 00:31:47,751 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:31:47" (1/1) ... [2022-04-05 00:31:47,752 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 00:31:48,048 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2}, 1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-05 00:31:48,049 INFO L91 elerationTransformer]: Accelerated Formula: (and (= v_main_~main__x~0_2 (+ (- 1) v_main_~main__x~0_3)) (= (+ (- 1) v_main_~main__y~0_3) v_main_~main__y~0_2) (= v_main_~main____CPAchecker_TMP_1~0_1 v_main_~main__y~0_3) (= v_main_~main____CPAchecker_TMP_0~0_1 v_main_~main__x~0_3) (not (= 0 v_main_~main__x~0_3))) InVars {main_~main__x~0=v_main_~main__x~0_3, main_~main__y~0=v_main_~main__y~0_3} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_1, main_~main____CPAchecker_TMP_1~0=v_main_~main____CPAchecker_TMP_1~0_1, main_~main__x~0=v_main_~main__x~0_2, main_~main__y~0=v_main_~main__y~0_2} AuxVars[] AssignedVars[main_~main____CPAchecker_TMP_0~0, main_~main____CPAchecker_TMP_1~0, main_~main__x~0, main_~main__y~0] to Formula: (let ((.cse0 (= 0 v_main_~main__x~0_3))) (or (and .cse0 (= v_main_~main__x~0_3 v_main_~main__x~0_2) (= v_main_~main____CPAchecker_TMP_1~0_2 v_main_~main____CPAchecker_TMP_1~0_1) (= v_main_~main__y~0_3 v_main_~main__y~0_2) (= v_main_~main____CPAchecker_TMP_0~0_2 v_main_~main____CPAchecker_TMP_0~0_1)) (let ((.cse1 (+ v_main_~main__x~0_2 1)) (.cse2 (* (- 1) v_main_~main__x~0_3))) (and (= v_main_~main____CPAchecker_TMP_0~0_1 .cse1) (or (not (<= 1 v_main_~main__x~0_3)) (not (<= .cse1 0))) (< v_main_~main__x~0_2 v_main_~main__x~0_3) (= v_main_~main____CPAchecker_TMP_1~0_1 (+ .cse2 v_main_~main__x~0_2 v_main_~main__y~0_3 1)) (= (+ .cse2 v_main_~main__x~0_2 v_main_~main__y~0_3) v_main_~main__y~0_2) (not .cse0))))) InVars {main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_2, main_~main____CPAchecker_TMP_1~0=v_main_~main____CPAchecker_TMP_1~0_2, main_~main__x~0=v_main_~main__x~0_3, main_~main__y~0=v_main_~main__y~0_3} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_1, main_~main____CPAchecker_TMP_1~0=v_main_~main____CPAchecker_TMP_1~0_1, main_~main__x~0=v_main_~main__x~0_2, main_~main__y~0=v_main_~main__y~0_2} AuxVars[] AssignedVars[main_~main____CPAchecker_TMP_0~0, main_~main____CPAchecker_TMP_1~0, main_~main__x~0, main_~main__y~0] [2022-04-05 00:31:48,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 12:31:48 BasicIcfg [2022-04-05 00:31:48,053 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 00:31:48,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 00:31:48,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 00:31:48,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 00:31:48,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 12:31:47" (1/4) ... [2022-04-05 00:31:48,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cebc427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 12:31:48, skipping insertion in model container [2022-04-05 00:31:48,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:31:47" (2/4) ... [2022-04-05 00:31:48,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cebc427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 12:31:48, skipping insertion in model container [2022-04-05 00:31:48,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:31:47" (3/4) ... [2022-04-05 00:31:48,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cebc427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 12:31:48, skipping insertion in model container [2022-04-05 00:31:48,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 12:31:48" (4/4) ... [2022-04-05 00:31:48,063 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.cJordan [2022-04-05 00:31:48,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 00:31:48,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 00:31:48,108 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 00:31:48,117 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 00:31:48,117 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 00:31:48,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-05 00:31:48,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-05 00:31:48,134 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 00:31:48,135 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 00:31:48,135 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 00:31:48,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 00:31:48,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1936523046, now seen corresponding path program 1 times [2022-04-05 00:31:48,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 00:31:48,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096407332] [2022-04-05 00:31:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:31:48,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 00:31:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:31:48,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 00:31:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:31:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 00:31:48,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 00:31:48,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096407332] [2022-04-05 00:31:48,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096407332] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 00:31:48,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 00:31:48,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 00:31:48,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550912765] [2022-04-05 00:31:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 00:31:48,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 00:31:48,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 00:31:48,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 00:31:48,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 00:31:48,383 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:31:48,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 00:31:48,616 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2022-04-05 00:31:48,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 00:31:48,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-05 00:31:48,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 00:31:48,632 INFO L225 Difference]: With dead ends: 26 [2022-04-05 00:31:48,633 INFO L226 Difference]: Without dead ends: 14 [2022-04-05 00:31:48,634 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-04-05 00:31:48,638 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-05 00:31:48,640 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 44 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-05 00:31:48,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-04-05 00:31:48,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-04-05 00:31:48,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:31:48,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-04-05 00:31:48,677 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2022-04-05 00:31:48,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 00:31:48,677 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-04-05 00:31:48,677 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:31:48,678 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-05 00:31:48,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-05 00:31:48,678 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 00:31:48,679 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 00:31:48,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 00:31:48,679 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 00:31:48,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 00:31:48,682 INFO L85 PathProgramCache]: Analyzing trace with hash 96372484, now seen corresponding path program 1 times [2022-04-05 00:31:48,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 00:31:48,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798901538] [2022-04-05 00:31:48,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:31:48,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 00:31:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:31:48,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 00:31:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:31:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 00:31:48,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 00:31:48,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798901538] [2022-04-05 00:31:48,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798901538] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 00:31:48,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889554053] [2022-04-05 00:31:48,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:31:48,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 00:31:48,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 00:31:48,866 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 00:31:48,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 00:31:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:31:48,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 12 conjunts are in the unsatisfiable core [2022-04-05 00:31:48,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 00:31:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 00:31:49,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 00:31:49,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 00:31:49,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889554053] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 00:31:49,370 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 00:31:49,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-04-05 00:31:49,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674003641] [2022-04-05 00:31:49,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 00:31:49,373 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-05 00:31:49,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 00:31:49,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-05 00:31:49,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-04-05 00:31:49,375 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:31:49,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 00:31:49,599 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-05 00:31:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 00:31:49,599 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 1 states have call successors, (3), 2 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 [2022-04-05 00:31:49,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 00:31:49,600 INFO L225 Difference]: With dead ends: 12 [2022-04-05 00:31:49,600 INFO L226 Difference]: Without dead ends: 0 [2022-04-05 00:31:49,600 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-04-05 00:31:49,601 INFO L913 BasicCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-05 00:31:49,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 35 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-05 00:31:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-05 00:31:49,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-05 00:31:49,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-05 00:31:49,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-05 00:31:49,603 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-04-05 00:31:49,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 00:31:49,603 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-05 00:31:49,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:31:49,604 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-05 00:31:49,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-05 00:31:49,606 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-05 00:31:49,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-05 00:31:49,807 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 00:31:49,809 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-05 00:31:49,810 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-05 00:31:49,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 12:31:49 BasicIcfg [2022-04-05 00:31:49,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-05 00:31:49,813 INFO L158 Benchmark]: Toolchain (without parser) took 2515.09ms. Allocated memory was 188.7MB in the beginning and 298.8MB in the end (delta: 110.1MB). Free memory was 130.5MB in the beginning and 208.5MB in the end (delta: -78.0MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB. [2022-04-05 00:31:49,814 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-05 00:31:49,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.49ms. Allocated memory is still 188.7MB. Free memory was 130.4MB in the beginning and 158.0MB in the end (delta: -27.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-04-05 00:31:49,815 INFO L158 Benchmark]: Boogie Preprocessor took 19.32ms. Allocated memory is still 188.7MB. Free memory was 158.0MB in the beginning and 156.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-05 00:31:49,815 INFO L158 Benchmark]: RCFGBuilder took 230.71ms. Allocated memory is still 188.7MB. Free memory was 156.6MB in the beginning and 147.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-05 00:31:49,815 INFO L158 Benchmark]: IcfgTransformer took 305.85ms. Allocated memory is still 188.7MB. Free memory was 147.2MB in the beginning and 136.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-05 00:31:49,816 INFO L158 Benchmark]: TraceAbstraction took 1758.59ms. Allocated memory was 188.7MB in the beginning and 298.8MB in the end (delta: 110.1MB). Free memory was 135.3MB in the beginning and 208.5MB in the end (delta: -73.2MB). Peak memory consumption was 38.1MB. Max. memory is 8.0GB. [2022-04-05 00:31:49,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 0 HavocedVariables, 4 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=2}, 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 0.13ms. Allocated memory is still 188.7MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.49ms. Allocated memory is still 188.7MB. Free memory was 130.4MB in the beginning and 158.0MB in the end (delta: -27.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.32ms. Allocated memory is still 188.7MB. Free memory was 158.0MB in the beginning and 156.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 230.71ms. Allocated memory is still 188.7MB. Free memory was 156.6MB in the beginning and 147.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 305.85ms. Allocated memory is still 188.7MB. Free memory was 147.2MB in the beginning and 136.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1758.59ms. Allocated memory was 188.7MB in the beginning and 298.8MB in the end (delta: 110.1MB). Free memory was 135.3MB in the beginning and 208.5MB in the end (delta: -73.2MB). Peak memory consumption was 38.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 53]: 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 3 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 25 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 308 SizeOfPredicates, 11 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-05 00:31:49,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...