/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark17_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 04:19:09,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 04:19:09,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 04:19:09,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 04:19:09,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 04:19:09,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 04:19:09,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 04:19:09,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 04:19:09,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 04:19:09,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 04:19:09,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 04:19:09,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 04:19:09,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 04:19:09,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 04:19:09,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 04:19:09,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 04:19:09,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 04:19:09,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 04:19:09,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 04:19:09,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 04:19:09,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 04:19:09,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 04:19:09,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 04:19:09,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 04:19:09,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 04:19:09,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 04:19:09,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 04:19:09,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 04:19:09,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 04:19:09,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 04:19:09,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 04:19:09,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 04:19:09,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 04:19:09,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 04:19:09,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 04:19:09,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 04:19:09,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 04:19:09,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 04:19:09,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 04:19:09,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 04:19:09,699 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 04:19:09,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 04:19:09,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 04:19:09,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 04:19:09,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 04:19:09,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 04:19:09,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 04:19:09,700 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 04:19:09,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 04:19:09,701 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 04:19:09,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 04:19:09,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 04:19:09,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 04:19:09,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 04:19:09,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 04:19:09,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 04:19:09,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 04:19:09,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 04:19:09,702 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 04:19:09,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 04:19:09,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 04:19:09,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 04:19:09,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 04:19:09,954 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 04:19:09,954 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 04:19:09,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark17_conjunctive.i [2021-05-01 04:19:09,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10894e644/5d41ee0ff34146f2b7c7819ccdb112e8/FLAGa03e70908 [2021-05-01 04:19:10,338 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 04:19:10,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark17_conjunctive.i [2021-05-01 04:19:10,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10894e644/5d41ee0ff34146f2b7c7819ccdb112e8/FLAGa03e70908 [2021-05-01 04:19:10,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10894e644/5d41ee0ff34146f2b7c7819ccdb112e8 [2021-05-01 04:19:10,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 04:19:10,768 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 04:19:10,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 04:19:10,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 04:19:10,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 04:19:10,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 04:19:10" (1/1) ... [2021-05-01 04:19:10,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541293f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10, skipping insertion in model container [2021-05-01 04:19:10,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 04:19:10" (1/1) ... [2021-05-01 04:19:10,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 04:19:10,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 04:19:10,882 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark17_conjunctive.i[873,886] [2021-05-01 04:19:10,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 04:19:10,895 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 04:19:10,904 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark17_conjunctive.i[873,886] [2021-05-01 04:19:10,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 04:19:10,915 INFO L208 MainTranslator]: Completed translation [2021-05-01 04:19:10,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10 WrapperNode [2021-05-01 04:19:10,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 04:19:10,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 04:19:10,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 04:19:10,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 04:19:10,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10" (1/1) ... [2021-05-01 04:19:10,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10" (1/1) ... [2021-05-01 04:19:10,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10" (1/1) ... [2021-05-01 04:19:10,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10" (1/1) ... [2021-05-01 04:19:10,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10" (1/1) ... [2021-05-01 04:19:10,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10" (1/1) ... [2021-05-01 04:19:10,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10" (1/1) ... [2021-05-01 04:19:10,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 04:19:10,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 04:19:10,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 04:19:10,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 04:19:10,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10" (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 [2021-05-01 04:19:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 04:19:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 04:19:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 04:19:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 04:19:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 04:19:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 04:19:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 04:19:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 04:19:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 04:19:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 04:19:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 04:19:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-05-01 04:19:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 04:19:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 04:19:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 04:19:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 04:19:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 04:19:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 04:19:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 04:19:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 04:19:11,299 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 04:19:11,299 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 04:19:11,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 04:19:11 BoogieIcfgContainer [2021-05-01 04:19:11,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 04:19:11,300 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 04:19:11,300 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 04:19:11,301 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 04:19:11,303 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 04:19:11" (1/1) ... [2021-05-01 04:19:11,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 04:19:11,380 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~i~0_3 v_main_~n~0_2) InVars {main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_2} OutVars{main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_2} AuxVars[] AssignedVars[] [2021-05-01 04:19:11,405 WARN L240 tifierPushTermWalker]: treesize reduction 7, result has 89.1 percent of original size [2021-05-01 04:19:11,428 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,452 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 04:19:11,461 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,472 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 04:19:11,480 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,486 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,489 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,492 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,494 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,497 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,499 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,502 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,504 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,505 WARN L245 tifierPushTermWalker]: treesize reduction 7, result has 89.1 percent of original size 57 [2021-05-01 04:19:11,524 INFO L1111 elerationTransformer]: Accelerated Formula: (and (= v_main_~i~0_2 (+ v_main_~i~0_3 1)) (= (+ v_main_~k~0_2 1) v_main_~k~0_1) (< v_main_~i~0_3 v_main_~n~0_2)) InVars {main_~k~0=v_main_~k~0_2, main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_2} OutVars{main_~k~0=v_main_~k~0_1, main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_2, main_#t~post6=|v_main_#t~post6_1|, main_#t~post7=|v_main_#t~post7_1|} AuxVars[] AssignedVars[main_~k~0, main_~i~0, main_#t~post6, main_#t~post7] with Formula: (or (let ((.cse0 (+ v_itFin_1 v_main_~i~0_3))) (and (= v_main_~k~0_1 (+ v_itFin_1 v_main_~k~0_2)) (<= v_main_~n~0_2 .cse0) (= v_main_~i~0_2 .cse0) (< v_main_~i~0_3 v_main_~n~0_2) (< .cse0 (+ v_main_~n~0_2 1)))) (and (<= v_main_~n~0_2 v_main_~i~0_3) (= |v_main_#t~post7_3| |v_main_#t~post7_1|) (= v_itFin_1 0) (= v_main_~i~0_3 v_main_~i~0_2) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) (= v_main_~k~0_2 v_main_~k~0_1))) InVars {main_~i~0=v_main_~i~0_3, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_2, main_#t~post6=|v_main_#t~post6_3|, main_#t~post7=|v_main_#t~post7_3|} OutVars{main_~i~0=v_main_~i~0_2, main_~n~0=v_main_~n~0_2, main_~k~0=v_main_~k~0_1, main_#t~post6=|v_main_#t~post6_1|, main_#t~post7=|v_main_#t~post7_1|} AuxVars[v_itFin_1] AssignedVars[main_~k~0, main_~i~0, main_#t~post6, main_#t~post7] [2021-05-01 04:19:11,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 04:19:11 BasicIcfg [2021-05-01 04:19:11,531 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 04:19:11,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 04:19:11,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 04:19:11,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 04:19:11,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 04:19:10" (1/4) ... [2021-05-01 04:19:11,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3a6b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 04:19:11, skipping insertion in model container [2021-05-01 04:19:11,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:19:10" (2/4) ... [2021-05-01 04:19:11,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3a6b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 04:19:11, skipping insertion in model container [2021-05-01 04:19:11,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 04:19:11" (3/4) ... [2021-05-01 04:19:11,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3a6b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 04:19:11, skipping insertion in model container [2021-05-01 04:19:11,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 04:19:11" (4/4) ... [2021-05-01 04:19:11,537 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark17_conjunctive.iJordan [2021-05-01 04:19:11,541 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 04:19:11,544 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 04:19:11,556 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 04:19:11,567 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 04:19:11,568 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 04:19:11,568 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 04:19:11,568 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 04:19:11,568 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 04:19:11,568 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 04:19:11,568 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 04:19:11,568 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 04:19:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 04:19:11,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 04:19:11,582 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 04:19:11,583 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 04:19:11,583 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 04:19:11,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 04:19:11,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times [2021-05-01 04:19:11,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 04:19:11,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230872597] [2021-05-01 04:19:11,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 04:19:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:19:11,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:19:11,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:19:11,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 04:19:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:19:11,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:19:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 04:19:11,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 04:19:11,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230872597] [2021-05-01 04:19:11,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230872597] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 04:19:11,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 04:19:11,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 04:19:11,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845910577] [2021-05-01 04:19:11,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 04:19:11,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 04:19:11,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 04:19:11,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 04:19:11,770 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:19:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 04:19:11,802 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-05-01 04:19:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 04:19:11,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-05-01 04:19:11,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 04:19:11,807 INFO L225 Difference]: With dead ends: 20 [2021-05-01 04:19:11,808 INFO L226 Difference]: Without dead ends: 13 [2021-05-01 04:19:11,809 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 04:19:11,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-01 04:19:11,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-01 04:19:11,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:19:11,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-01 04:19:11,838 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2021-05-01 04:19:11,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 04:19:11,838 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-01 04:19:11,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:19:11,839 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-01 04:19:11,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 04:19:11,840 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 04:19:11,840 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 04:19:11,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 04:19:11,840 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 04:19:11,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 04:19:11,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times [2021-05-01 04:19:11,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 04:19:11,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180886003] [2021-05-01 04:19:11,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 04:19:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:19:11,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:19:11,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:19:11,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 04:19:11,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 04:19:11,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 04:19:11,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 04:19:11,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:19:11,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 04:19:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:19:11,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:19:11,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:19:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 04:19:11,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 04:19:11,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180886003] [2021-05-01 04:19:11,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180886003] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 04:19:11,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 04:19:11,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 04:19:11,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033205320] [2021-05-01 04:19:11,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 04:19:11,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 04:19:11,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 04:19:11,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-01 04:19:11,981 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:19:12,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 04:19:12,130 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-05-01 04:19:12,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-01 04:19:12,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-05-01 04:19:12,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 04:19:12,131 INFO L225 Difference]: With dead ends: 12 [2021-05-01 04:19:12,131 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 04:19:12,132 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 150.7ms TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-05-01 04:19:12,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 04:19:12,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 04:19:12,132 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) [2021-05-01 04:19:12,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 04:19:12,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-05-01 04:19:12,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 04:19:12,132 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 04:19:12,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:19:12,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 04:19:12,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 04:19:12,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 04:19:12,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 04:19:12 BasicIcfg [2021-05-01 04:19:12,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 04:19:12,136 INFO L168 Benchmark]: Toolchain (without parser) took 1368.23 ms. Allocated memory is still 204.5 MB. Free memory was 169.5 MB in the beginning and 150.7 MB in the end (delta: 18.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 8.0 GB. [2021-05-01 04:19:12,136 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 204.5 MB. Free memory is still 186.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 04:19:12,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.73 ms. Allocated memory is still 204.5 MB. Free memory was 169.3 MB in the beginning and 160.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-01 04:19:12,137 INFO L168 Benchmark]: Boogie Preprocessor took 75.18 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 187.1 MB in the end (delta: -27.2 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. [2021-05-01 04:19:12,137 INFO L168 Benchmark]: RCFGBuilder took 307.89 ms. Allocated memory is still 204.5 MB. Free memory was 187.1 MB in the beginning and 173.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-01 04:19:12,138 INFO L168 Benchmark]: IcfgTransformer took 230.81 ms. Allocated memory is still 204.5 MB. Free memory was 173.5 MB in the beginning and 157.1 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-05-01 04:19:12,138 INFO L168 Benchmark]: TraceAbstraction took 603.20 ms. Allocated memory is still 204.5 MB. Free memory was 156.7 MB in the beginning and 150.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. [2021-05-01 04:19:12,140 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 204.5 MB. Free memory is still 186.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 145.73 ms. Allocated memory is still 204.5 MB. Free memory was 169.3 MB in the beginning and 160.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 75.18 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 187.1 MB in the end (delta: -27.2 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 307.89 ms. Allocated memory is still 204.5 MB. Free memory was 187.1 MB in the beginning and 173.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 230.81 ms. Allocated memory is still 204.5 MB. Free memory was 173.5 MB in the beginning and 157.1 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 603.20 ms. Allocated memory is still 204.5 MB. Free memory was 156.7 MB in the beginning and 150.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 567.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 8.9ms, AutomataDifference: 202.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 18 SDslu, 24 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 168.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.7ms SsaConstructionTime, 49.7ms SatisfiabilityAnalysisTime, 177.8ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...