/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-invariants/eq2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 04:15:43,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 04:15:43,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 04:15:43,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 04:15:43,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 04:15:43,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 04:15:43,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 04:15:43,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 04:15:43,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 04:15:43,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 04:15:43,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 04:15:43,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 04:15:43,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 04:15:43,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 04:15:43,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 04:15:43,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 04:15:43,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 04:15:43,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 04:15:43,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 04:15:43,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 04:15:43,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 04:15:43,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 04:15:43,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 04:15:43,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 04:15:43,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-01 04:15:43,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-01 04:15:43,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-01 04:15:43,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-01 04:15:43,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-01 04:15:43,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-01 04:15:43,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 04:15:43,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 04:15:43,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 04:15:43,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 04:15:43,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 04:15:43,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 04:15:43,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 04:15:43,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 04:15:43,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 04:15:43,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 04:15:43,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 04:15:43,148 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 04:15:43,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 04:15:43,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 04:15:43,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 04:15:43,163 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 04:15:43,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 04:15:43,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 04:15:43,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 04:15:43,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 04:15:43,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 04:15:43,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 04:15:43,165 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 04:15:43,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 04:15:43,165 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 04:15:43,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 04:15:43,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 04:15:43,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 04:15:43,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 04:15:43,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 04:15:43,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 04:15:43,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 04:15:43,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 04:15:43,167 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 04:15:43,167 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 04:15:43,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 04:15:43,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 04:15:43,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 04:15:43,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 04:15:43,423 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 04:15:43,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq2.c [2021-05-01 04:15:43,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec865a7d/6f97d718a70248d38b33b8a4d1d12812/FLAGb13e1db17 [2021-05-01 04:15:43,859 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 04:15:43,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c [2021-05-01 04:15:43,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec865a7d/6f97d718a70248d38b33b8a4d1d12812/FLAGb13e1db17 [2021-05-01 04:15:43,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec865a7d/6f97d718a70248d38b33b8a4d1d12812 [2021-05-01 04:15:43,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 04:15:43,886 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 04:15:43,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 04:15:43,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 04:15:43,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 04:15:43,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 04:15:43" (1/1) ... [2021-05-01 04:15:43,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5537f6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:43, skipping insertion in model container [2021-05-01 04:15:43,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 04:15:43" (1/1) ... [2021-05-01 04:15:43,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 04:15:43,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 04:15:44,048 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-invariants/eq2.c[364,377] [2021-05-01 04:15:44,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 04:15:44,065 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 04:15:44,106 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-invariants/eq2.c[364,377] [2021-05-01 04:15:44,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 04:15:44,120 INFO L208 MainTranslator]: Completed translation [2021-05-01 04:15:44,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44 WrapperNode [2021-05-01 04:15:44,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 04:15:44,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 04:15:44,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 04:15:44,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 04:15:44,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44" (1/1) ... [2021-05-01 04:15:44,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44" (1/1) ... [2021-05-01 04:15:44,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44" (1/1) ... [2021-05-01 04:15:44,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44" (1/1) ... [2021-05-01 04:15:44,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44" (1/1) ... [2021-05-01 04:15:44,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44" (1/1) ... [2021-05-01 04:15:44,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44" (1/1) ... [2021-05-01 04:15:44,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 04:15:44,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 04:15:44,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 04:15:44,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 04:15:44,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44" (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 04:15:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 04:15:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 04:15:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 04:15:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 04:15:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 04:15:44,254 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 04:15:44,255 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 04:15:44,255 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 04:15:44,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 04:15:44,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-05-01 04:15:44,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 04:15:44,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 04:15:44,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 04:15:44,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 04:15:44,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 04:15:44,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 04:15:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 04:15:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 04:15:44,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 04:15:44,442 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 04:15:44,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 04:15:44 BoogieIcfgContainer [2021-05-01 04:15:44,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 04:15:44,444 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 04:15:44,444 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 04:15:44,444 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 04:15:44,446 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 04:15:44" (1/1) ... [2021-05-01 04:15:44,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-05-01 04:15:44,491 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= (mod |v_main_#t~nondet8_4| 4294967296) 0)) InVars {main_#t~nondet8=|v_main_#t~nondet8_4|} OutVars{main_#t~nondet8=|v_main_#t~nondet8_4|} AuxVars[] AssignedVars[] [2021-05-01 04:15:44,507 WARN L240 tifierPushTermWalker]: treesize reduction 2, result has 97.1 percent of original size [2021-05-01 04:15:44,519 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,523 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,534 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,544 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,570 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,573 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,583 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,590 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,604 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,611 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,615 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,617 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,635 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,635 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 04:15:44,644 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,652 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,666 WARN L245 tifierPushTermWalker]: treesize reduction 2, result has 97.1 percent of original size 67 [2021-05-01 04:15:44,696 INFO L1111 elerationTransformer]: Accelerated Formula: (and (not (= (mod |v_main_#t~nondet8_4| 4294967296) 0)) (= v_main_~y~0_2 (+ v_main_~y~0_3 1)) (= (+ v_main_~z~0_3 1) v_main_~z~0_2)) InVars {main_~z~0=v_main_~z~0_3, main_~y~0=v_main_~y~0_3, main_#t~nondet8=|v_main_#t~nondet8_4|} OutVars{main_#t~post10=|v_main_#t~post10_1|, main_~z~0=v_main_~z~0_2, main_~y~0=v_main_~y~0_2, main_#t~post9=|v_main_#t~post9_1|, main_#t~nondet8=|v_main_#t~nondet8_3|} AuxVars[] AssignedVars[main_#t~post10, main_~z~0, main_~y~0, main_#t~post9, main_#t~nondet8] with Formula: (let ((.cse0 (= (mod |v_main_#t~nondet8_4| 4294967296) 0))) (or (and (not .cse0) (= (mod |v_main_#t~nondet8_3| 4294967296) 0) (= v_main_~y~0_2 (+ v_itFin_1 v_main_~y~0_3)) (< 0 v_itFin_1) (= v_main_~z~0_2 (+ v_itFin_1 v_main_~z~0_3))) (and (= |v_main_#t~post9_3| |v_main_#t~post9_1|) (= v_itFin_1 0) (= v_main_~z~0_3 v_main_~z~0_2) .cse0 (= |v_main_#t~nondet8_4| |v_main_#t~nondet8_3|) (= |v_main_#t~post10_3| |v_main_#t~post10_1|) (= v_main_~y~0_3 v_main_~y~0_2)))) InVars {main_~y~0=v_main_~y~0_3, main_#t~post10=|v_main_#t~post10_3|, main_#t~nondet8=|v_main_#t~nondet8_4|, main_#t~post9=|v_main_#t~post9_3|, main_~z~0=v_main_~z~0_3} OutVars{main_~y~0=v_main_~y~0_2, main_#t~post10=|v_main_#t~post10_1|, main_#t~post9=|v_main_#t~post9_1|, main_#t~nondet8=|v_main_#t~nondet8_3|, main_~z~0=v_main_~z~0_2} AuxVars[v_itFin_1] AssignedVars[main_#t~post10, main_~z~0, main_~y~0, main_#t~post9, main_#t~nondet8] [2021-05-01 04:15:44,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 04:15:44 BasicIcfg [2021-05-01 04:15:44,701 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 04:15:44,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 04:15:44,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 04:15:44,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 04:15:44,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 04:15:43" (1/4) ... [2021-05-01 04:15:44,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643f9857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 04:15:44, skipping insertion in model container [2021-05-01 04:15:44,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:15:44" (2/4) ... [2021-05-01 04:15:44,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643f9857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 04:15:44, skipping insertion in model container [2021-05-01 04:15:44,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 04:15:44" (3/4) ... [2021-05-01 04:15:44,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643f9857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 04:15:44, skipping insertion in model container [2021-05-01 04:15:44,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 04:15:44" (4/4) ... [2021-05-01 04:15:44,706 INFO L111 eAbstractionObserver]: Analyzing ICFG eq2.cJordan [2021-05-01 04:15:44,722 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 04:15:44,725 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 04:15:44,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 04:15:44,751 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 04:15:44,752 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 04:15:44,752 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 04:15:44,752 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 04:15:44,752 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 04:15:44,752 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 04:15:44,752 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 04:15:44,752 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 04:15:44,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 04:15:44,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-01 04:15:44,768 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 04:15:44,769 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 04:15:44,769 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 04:15:44,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 04:15:44,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1088827777, now seen corresponding path program 1 times [2021-05-01 04:15:44,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 04:15:44,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688979234] [2021-05-01 04:15:44,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 04:15:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:15:44,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:15:44,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:15:44,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 04:15:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:15:44,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:44,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:15:44,892 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 04:15:44,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 04:15:44,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688979234] [2021-05-01 04:15:44,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688979234] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 04:15:44,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 04:15:44,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 04:15:44,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628485716] [2021-05-01 04:15:44,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 04:15:44,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 04:15:44,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 04:15:44,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 04:15:44,918 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 04:15:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 04:15:44,962 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-05-01 04:15:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 04:15:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11 [2021-05-01 04:15:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 04:15:44,969 INFO L225 Difference]: With dead ends: 19 [2021-05-01 04:15:44,969 INFO L226 Difference]: Without dead ends: 12 [2021-05-01 04:15:44,970 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 04:15:44,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-05-01 04:15:44,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-05-01 04:15:44,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 04:15:44,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-05-01 04:15:44,992 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2021-05-01 04:15:44,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 04:15:44,993 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-05-01 04:15:44,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 04:15:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-05-01 04:15:44,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-01 04:15:44,994 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 04:15:44,995 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 04:15:44,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 04:15:44,995 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 04:15:45,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 04:15:45,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1087904256, now seen corresponding path program 1 times [2021-05-01 04:15:45,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 04:15:45,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068590074] [2021-05-01 04:15:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 04:15:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:15:45,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:45,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:15:45,124 INFO L142 QuantifierPusher]: treesize reduction 19, result has 81.6 percent of original size [2021-05-01 04:15:45,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 04:15:45,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:45,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 04:15:45,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:45,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 04:15:45,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:45,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:15:45,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 04:15:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:15:45,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:15:45,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:15:45,199 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 04:15:45,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 04:15:45,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068590074] [2021-05-01 04:15:45,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068590074] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 04:15:45,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 04:15:45,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-01 04:15:45,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833472504] [2021-05-01 04:15:45,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 04:15:45,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 04:15:45,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 04:15:45,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-01 04:15:45,206 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 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 04:15:45,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 04:15:45,315 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-05-01 04:15:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 04:15:45,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 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 11 [2021-05-01 04:15:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 04:15:45,316 INFO L225 Difference]: With dead ends: 10 [2021-05-01 04:15:45,316 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 04:15:45,317 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 124.7ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-05-01 04:15:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 04:15:45,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 04:15:45,318 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 04:15:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 04:15:45,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-05-01 04:15:45,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 04:15:45,318 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 04:15:45,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 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 04:15:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 04:15:45,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 04:15:45,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 04:15:45,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 04:15:45 BasicIcfg [2021-05-01 04:15:45,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 04:15:45,323 INFO L168 Benchmark]: Toolchain (without parser) took 1436.34 ms. Allocated memory is still 190.8 MB. Free memory was 155.6 MB in the beginning and 126.7 MB in the end (delta: 28.9 MB). Peak memory consumption was 29.6 MB. Max. memory is 8.0 GB. [2021-05-01 04:15:45,324 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 190.8 MB. Free memory is still 172.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 04:15:45,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.99 ms. Allocated memory is still 190.8 MB. Free memory was 155.4 MB in the beginning and 173.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 11.8 MB. Max. memory is 8.0 GB. [2021-05-01 04:15:45,325 INFO L168 Benchmark]: Boogie Preprocessor took 35.29 ms. Allocated memory is still 190.8 MB. Free memory was 173.6 MB in the beginning and 172.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-01 04:15:45,328 INFO L168 Benchmark]: RCFGBuilder took 284.21 ms. Allocated memory is still 190.8 MB. Free memory was 172.2 MB in the beginning and 159.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-01 04:15:45,328 INFO L168 Benchmark]: IcfgTransformer took 257.56 ms. Allocated memory is still 190.8 MB. Free memory was 159.0 MB in the beginning and 141.1 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-05-01 04:15:45,328 INFO L168 Benchmark]: TraceAbstraction took 619.72 ms. Allocated memory is still 190.8 MB. Free memory was 140.4 MB in the beginning and 126.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. [2021-05-01 04:15:45,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 3 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 0.25 ms. Allocated memory is still 190.8 MB. Free memory is still 172.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 229.99 ms. Allocated memory is still 190.8 MB. Free memory was 155.4 MB in the beginning and 173.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 11.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.29 ms. Allocated memory is still 190.8 MB. Free memory was 173.6 MB in the beginning and 172.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 284.21 ms. Allocated memory is still 190.8 MB. Free memory was 172.2 MB in the beginning and 159.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 257.56 ms. Allocated memory is still 190.8 MB. Free memory was 159.0 MB in the beginning and 141.1 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 619.72 ms. Allocated memory is still 190.8 MB. Free memory was 140.4 MB in the beginning and 126.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 572.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.0ms, AutomataDifference: 185.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23 SDtfs, 14 SDslu, 19 SDs, 0 SdLazy, 19 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 142.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 13.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.6ms SsaConstructionTime, 61.8ms SatisfiabilityAnalysisTime, 198.7ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 166 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...