/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/benchmark04_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 04:31:05,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 04:31:05,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 04:31:05,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 04:31:05,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 04:31:05,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 04:31:05,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 04:31:05,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 04:31:05,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 04:31:05,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 04:31:05,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 04:31:05,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 04:31:05,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 04:31:05,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 04:31:05,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 04:31:05,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 04:31:05,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 04:31:05,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 04:31:05,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 04:31:05,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 04:31:05,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 04:31:05,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 04:31:05,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 04:31:05,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 04:31:05,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-16 04:31:05,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-16 04:31:05,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-16 04:31:05,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-16 04:31:05,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-16 04:31:05,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-16 04:31:05,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 04:31:05,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 04:31:05,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 04:31:05,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 04:31:05,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 04:31:05,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 04:31:05,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 04:31:05,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 04:31:05,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 04:31:05,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 04:31:05,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 04:31:05,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-04-16 04:31:05,991 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 04:31:05,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 04:31:05,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 04:31:05,995 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 04:31:05,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 04:31:05,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 04:31:05,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 04:31:05,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 04:31:05,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 04:31:05,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 04:31:05,997 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 04:31:05,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 04:31:05,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 04:31:05,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 04:31:05,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 04:31:05,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 04:31:05,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 04:31:05,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 04:31:05,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 04:31:05,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 04:31:05,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-16 04:31:06,000 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-04-16 04:31:06,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 04:31:06,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 04:31:06,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 04:31:06,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 04:31:06,332 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 04:31:06,333 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 04:31:06,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i [2021-04-16 04:31:06,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2314a5ff8/4679f436d86c46949940ee7894ec5fbf/FLAG2063b8a6a [2021-04-16 04:31:06,895 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 04:31:06,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i [2021-04-16 04:31:06,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2314a5ff8/4679f436d86c46949940ee7894ec5fbf/FLAG2063b8a6a [2021-04-16 04:31:07,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2314a5ff8/4679f436d86c46949940ee7894ec5fbf [2021-04-16 04:31:07,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 04:31:07,303 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-16 04:31:07,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 04:31:07,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 04:31:07,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 04:31:07,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:07,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18bdd643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07, skipping insertion in model container [2021-04-16 04:31:07,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:07,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 04:31:07,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 04:31:07,483 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i[873,886] [2021-04-16 04:31:07,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 04:31:07,503 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 04:31:07,516 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark04_conjunctive.i[873,886] [2021-04-16 04:31:07,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 04:31:07,534 INFO L208 MainTranslator]: Completed translation [2021-04-16 04:31:07,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07 WrapperNode [2021-04-16 04:31:07,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 04:31:07,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 04:31:07,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 04:31:07,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 04:31:07,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:07,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:07,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:07,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:07,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:07,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:07,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:07,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 04:31:07,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 04:31:07,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 04:31:07,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 04:31:07,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07" (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 [2021-04-16 04:31:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 04:31:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 04:31:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 04:31:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 04:31:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 04:31:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 04:31:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-04-16 04:31:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-04-16 04:31:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 04:31:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 04:31:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-16 04:31:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-04-16 04:31:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 04:31:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 04:31:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 04:31:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 04:31:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 04:31:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 04:31:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 04:31:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 04:31:07,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 04:31:07,972 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 04:31:07,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 04:31:07 BoogieIcfgContainer [2021-04-16 04:31:07,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 04:31:07,975 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-04-16 04:31:07,975 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-04-16 04:31:07,975 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-04-16 04:31:07,978 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 04:31:07" (1/1) ... [2021-04-16 04:31:08,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 04:31:08,072 INFO L175 rdanLoopAcceleration]: Guard: Formula: (<= (+ v_main_~j~0_3 1) v_main_~n~0_2) InVars {main_~n~0=v_main_~n~0_2, main_~j~0=v_main_~j~0_3} OutVars{main_~n~0=v_main_~n~0_2, main_~j~0=v_main_~j~0_3} AuxVars[] AssignedVars[] [2021-04-16 04:31:08,087 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 81.8 percent of original size [2021-04-16 04:31:08,101 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,107 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,114 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 04:31:08,122 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,131 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,152 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 04:31:08,158 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,171 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,176 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,186 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,193 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,198 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,204 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,210 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 81.8 percent of original size 63 [2021-04-16 04:31:08,245 INFO L1067 elerationTransformer]: Accelerated Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (and (<= .cse0 v_main_~n~0_2) (= .cse0 v_main_~j~0_2) (= v_main_~k~0_2 (+ v_main_~k~0_1 1)))) InVars {main_~k~0=v_main_~k~0_2, main_~j~0=v_main_~j~0_3, main_~n~0=v_main_~n~0_2} OutVars{main_~k~0=v_main_~k~0_1, main_~j~0=v_main_~j~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_~j~0, main_#t~post6, main_#t~post7] with Formula: (let ((.cse0 (+ v_main_~j~0_3 1))) (or (let ((.cse1 (+ v_itFin_1 v_main_~j~0_3))) (and (<= .cse0 v_main_~n~0_2) (= v_main_~k~0_2 (+ v_itFin_1 v_main_~k~0_1)) (<= .cse1 v_main_~n~0_2) (= v_main_~j~0_2 .cse1) (< v_main_~n~0_2 (+ v_itFin_1 v_main_~j~0_3 1)))) (and (< v_main_~n~0_2 .cse0) (= |v_main_#t~post7_3| |v_main_#t~post7_1|) (= v_itFin_1 0) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) (= v_main_~k~0_2 v_main_~k~0_1) (= v_main_~j~0_3 v_main_~j~0_2)))) InVars {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_~j~0=v_main_~j~0_3, main_#t~post7=|v_main_#t~post7_3|} OutVars{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_~j~0=v_main_~j~0_2, main_#t~post7=|v_main_#t~post7_1|} AuxVars[v_itFin_1] AssignedVars[main_~k~0, main_~j~0, main_#t~post6, main_#t~post7] [2021-04-16 04:31:08,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 04:31:08 BasicIcfg [2021-04-16 04:31:08,257 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-04-16 04:31:08,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 04:31:08,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 04:31:08,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 04:31:08,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 04:31:07" (1/4) ... [2021-04-16 04:31:08,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6751554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 04:31:08, skipping insertion in model container [2021-04-16 04:31:08,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:31:07" (2/4) ... [2021-04-16 04:31:08,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6751554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 04:31:08, skipping insertion in model container [2021-04-16 04:31:08,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 04:31:07" (3/4) ... [2021-04-16 04:31:08,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6751554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 04:31:08, skipping insertion in model container [2021-04-16 04:31:08,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 04:31:08" (4/4) ... [2021-04-16 04:31:08,266 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark04_conjunctive.iJordan [2021-04-16 04:31:08,271 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-04-16 04:31:08,276 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 04:31:08,290 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 04:31:08,316 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 04:31:08,317 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-16 04:31:08,317 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-04-16 04:31:08,317 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 04:31:08,317 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 04:31:08,317 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 04:31:08,317 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 04:31:08,317 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 04:31:08,330 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) [2021-04-16 04:31:08,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-04-16 04:31:08,336 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 04:31:08,337 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 04:31:08,337 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 04:31:08,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 04:31:08,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times [2021-04-16 04:31:08,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 04:31:08,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477529604] [2021-04-16 04:31:08,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 04:31:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:31:08,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:08,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:08,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 04:31:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:31:08,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 04:31:08,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477529604] [2021-04-16 04:31:08,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 04:31:08,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 04:31:08,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051045218] [2021-04-16 04:31:08,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 04:31:08,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 04:31:08,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 04:31:08,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 04:31:08,581 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) [2021-04-16 04:31:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 04:31:08,619 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-04-16 04:31:08,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 04:31:08,620 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 [2021-04-16 04:31:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 04:31:08,626 INFO L225 Difference]: With dead ends: 20 [2021-04-16 04:31:08,627 INFO L226 Difference]: Without dead ends: 13 [2021-04-16 04:31:08,628 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 04:31:08,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-04-16 04:31:08,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-04-16 04:31:08,652 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) [2021-04-16 04:31:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-04-16 04:31:08,654 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2021-04-16 04:31:08,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 04:31:08,655 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-04-16 04:31:08,655 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) [2021-04-16 04:31:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-04-16 04:31:08,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-04-16 04:31:08,657 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 04:31:08,657 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 04:31:08,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 04:31:08,658 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 04:31:08,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 04:31:08,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times [2021-04-16 04:31:08,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 04:31:08,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648312788] [2021-04-16 04:31:08,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 04:31:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:31:08,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:08,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 04:31:08,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:08,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 04:31:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:31:08,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:08,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 04:31:08,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648312788] [2021-04-16 04:31:08,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 04:31:08,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 04:31:08,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291582790] [2021-04-16 04:31:08,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-16 04:31:08,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 04:31:08,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-16 04:31:08,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 04:31:08,795 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2021-04-16 04:31:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 04:31:08,862 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-04-16 04:31:08,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-16 04:31:08,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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 [2021-04-16 04:31:08,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 04:31:08,864 INFO L225 Difference]: With dead ends: 14 [2021-04-16 04:31:08,864 INFO L226 Difference]: Without dead ends: 14 [2021-04-16 04:31:08,865 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 75.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-16 04:31:08,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-04-16 04:31:08,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-04-16 04:31:08,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:31:08,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-04-16 04:31:08,871 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-04-16 04:31:08,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 04:31:08,871 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-04-16 04:31:08,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2021-04-16 04:31:08,872 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-04-16 04:31:08,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-04-16 04:31:08,872 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 04:31:08,873 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 04:31:08,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 04:31:08,873 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 04:31:08,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 04:31:08,874 INFO L82 PathProgramCache]: Analyzing trace with hash 306506437, now seen corresponding path program 1 times [2021-04-16 04:31:08,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 04:31:08,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91067288] [2021-04-16 04:31:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 04:31:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:31:08,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:08,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-16 04:31:08,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:08,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 04:31:08,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 04:31:08,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:08,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 04:31:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:31:09,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 04:31:09,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91067288] [2021-04-16 04:31:09,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125384314] [2021-04-16 04:31:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-16 04:31:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:31:09,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-16 04:31:09,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-16 04:31:09,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-16 04:31:09,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-16 04:31:09,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-16 04:31:09,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-16 04:31:09,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 04:31:09,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-16 04:31:09,164 INFO L147 QuantifierPusher]: treesize reduction 24, result has 51.0 percent of original size 25 [2021-04-16 04:31:09,166 INFO L142 QuantifierPusher]: treesize reduction 24, result has 52.0 percent of original size [2021-04-16 04:31:09,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 04:31:09,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-16 04:31:09,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-16 04:31:09,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 04:31:09,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-16 04:31:09,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 04:31:09,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 04:31:09,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-16 04:31:09,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 04:31:09,190 INFO L142 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size [2021-04-16 04:31:09,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 04:31:09,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,213 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-04-16 04:31:09,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 04:31:09,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-16 04:31:09,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-04-16 04:31:09,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488586443] [2021-04-16 04:31:09,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-16 04:31:09,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 04:31:09,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-16 04:31:09,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-04-16 04:31:09,218 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:31:09,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 04:31:09,375 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-04-16 04:31:09,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-16 04:31:09,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-04-16 04:31:09,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 04:31:09,377 INFO L225 Difference]: With dead ends: 18 [2021-04-16 04:31:09,377 INFO L226 Difference]: Without dead ends: 15 [2021-04-16 04:31:09,379 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 183.2ms TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-04-16 04:31:09,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-04-16 04:31:09,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-04-16 04:31:09,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:31:09,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-04-16 04:31:09,384 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2021-04-16 04:31:09,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 04:31:09,385 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-04-16 04:31:09,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:31:09,385 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-04-16 04:31:09,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-16 04:31:09,385 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 04:31:09,385 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 04:31:09,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-04-16 04:31:09,610 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 04:31:09,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 04:31:09,611 INFO L82 PathProgramCache]: Analyzing trace with hash 938486524, now seen corresponding path program 2 times [2021-04-16 04:31:09,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 04:31:09,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795658187] [2021-04-16 04:31:09,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 04:31:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:31:09,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-16 04:31:09,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 04:31:09,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 04:31:09,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 04:31:09,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 04:31:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:31:09,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 04:31:09,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795658187] [2021-04-16 04:31:09,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20219348] [2021-04-16 04:31:09,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-16 04:31:09,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-16 04:31:09,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-16 04:31:09,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-16 04:31:09,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-16 04:31:09,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:09,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-16 04:31:09,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-16 04:31:09,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-16 04:31:09,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-16 04:31:09,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 04:31:09,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-16 04:31:09,932 INFO L147 QuantifierPusher]: treesize reduction 24, result has 51.0 percent of original size 25 [2021-04-16 04:31:09,933 INFO L142 QuantifierPusher]: treesize reduction 24, result has 51.0 percent of original size [2021-04-16 04:31:09,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 04:31:09,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 04:31:09,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 04:31:09,969 INFO L142 QuantifierPusher]: treesize reduction 34, result has 49.3 percent of original size [2021-04-16 04:31:09,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 04:31:09,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 04:31:09,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 04:31:09,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-16 04:31:09,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:09,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 04:31:09,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-16 04:31:09,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 04:31:09,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:09,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 04:31:09,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:10,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-16 04:31:10,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 04:31:10,009 INFO L142 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size [2021-04-16 04:31:10,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:10,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:10,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:10,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 04:31:10,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:10,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:10,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:10,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:10,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:10,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 04:31:10,048 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-04-16 04:31:10,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:10,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:10,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:10,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:10,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:10,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:31:10,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:31:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 04:31:10,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-16 04:31:10,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-04-16 04:31:10,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917024065] [2021-04-16 04:31:10,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-16 04:31:10,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 04:31:10,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-16 04:31:10,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-04-16 04:31:10,054 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:31:10,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 04:31:10,213 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-04-16 04:31:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-16 04:31:10,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-04-16 04:31:10,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 04:31:10,214 INFO L225 Difference]: With dead ends: 13 [2021-04-16 04:31:10,214 INFO L226 Difference]: Without dead ends: 0 [2021-04-16 04:31:10,214 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 234.3ms TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-04-16 04:31:10,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-16 04:31:10,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-16 04:31:10,215 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) [2021-04-16 04:31:10,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-16 04:31:10,216 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-04-16 04:31:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 04:31:10,216 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-16 04:31:10,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 9 states have internal predecessors, (16), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:31:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-16 04:31:10,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-16 04:31:10,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-16 04:31:10,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 04:31:10 BasicIcfg [2021-04-16 04:31:10,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 04:31:10,436 INFO L168 Benchmark]: Toolchain (without parser) took 3133.29 ms. Allocated memory was 205.5 MB in the beginning and 247.5 MB in the end (delta: 41.9 MB). Free memory was 171.3 MB in the beginning and 202.5 MB in the end (delta: -31.3 MB). Peak memory consumption was 11.8 MB. Max. memory is 8.0 GB. [2021-04-16 04:31:10,437 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 205.5 MB. Free memory is still 188.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 04:31:10,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.15 ms. Allocated memory is still 205.5 MB. Free memory was 171.1 MB in the beginning and 161.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-04-16 04:31:10,437 INFO L168 Benchmark]: Boogie Preprocessor took 43.01 ms. Allocated memory is still 205.5 MB. Free memory was 161.6 MB in the beginning and 160.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-16 04:31:10,437 INFO L168 Benchmark]: RCFGBuilder took 393.87 ms. Allocated memory is still 205.5 MB. Free memory was 160.1 MB in the beginning and 176.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. [2021-04-16 04:31:10,437 INFO L168 Benchmark]: IcfgTransformer took 282.03 ms. Allocated memory is still 205.5 MB. Free memory was 176.4 MB in the beginning and 160.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-04-16 04:31:10,437 INFO L168 Benchmark]: TraceAbstraction took 2177.47 ms. Allocated memory was 205.5 MB in the beginning and 247.5 MB in the end (delta: 41.9 MB). Free memory was 160.1 MB in the beginning and 202.5 MB in the end (delta: -42.4 MB). Peak memory consumption was 1.1 MB. Max. memory is 8.0 GB. [2021-04-16 04:31:10,438 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 0.30 ms. Allocated memory is still 205.5 MB. Free memory is still 188.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 228.15 ms. Allocated memory is still 205.5 MB. Free memory was 171.1 MB in the beginning and 161.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.01 ms. Allocated memory is still 205.5 MB. Free memory was 161.6 MB in the beginning and 160.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 393.87 ms. Allocated memory is still 205.5 MB. Free memory was 160.1 MB in the beginning and 176.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. * IcfgTransformer took 282.03 ms. Allocated memory is still 205.5 MB. Free memory was 176.4 MB in the beginning and 160.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2177.47 ms. Allocated memory was 205.5 MB in the beginning and 247.5 MB in the end (delta: 41.9 MB). Free memory was 160.1 MB in the beginning and 202.5 MB in the end (delta: -42.4 MB). Peak memory consumption was 1.1 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: 2119.5ms, OverallIterations: 4, TraceHistogramMax: 2, EmptinessCheckTime: 11.7ms, AutomataDifference: 454.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 SDtfs, 37 SDslu, 77 SDs, 0 SdLazy, 105 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 116.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 526.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 27.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.4ms SsaConstructionTime, 139.4ms SatisfiabilityAnalysisTime, 811.6ms InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 SizeOfPredicates, 8 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/8 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...