/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/linear-inequality-inv-a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 04:29:18,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 04:29:18,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 04:29:18,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 04:29:18,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 04:29:18,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 04:29:18,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 04:29:18,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 04:29:18,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 04:29:18,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 04:29:18,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 04:29:18,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 04:29:18,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 04:29:18,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 04:29:18,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 04:29:18,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 04:29:18,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 04:29:18,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 04:29:18,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 04:29:18,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 04:29:18,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 04:29:18,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 04:29:18,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 04:29:18,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 04:29:18,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 04:29:18,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 04:29:18,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 04:29:18,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 04:29:18,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 04:29:18,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 04:29:18,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 04:29:18,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 04:29:18,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 04:29:18,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 04:29:18,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 04:29:18,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 04:29:18,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-04-16 04:29:18,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 04:29:18,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 04:29:18,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 04:29:18,867 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 04:29:18,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 04:29:18,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 04:29:18,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 04:29:18,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 04:29:18,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 04:29:18,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 04:29:18,869 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 04:29:18,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 04:29:18,869 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 04:29:18,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 04:29:18,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 04:29:18,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 04:29:18,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 04:29:18,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 04:29:18,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 04:29:18,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 04:29:18,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-16 04:29:18,872 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-04-16 04:29:18,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 04:29:19,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 04:29:19,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 04:29:19,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 04:29:19,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 04:29:19,226 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 04:29:19,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/linear-inequality-inv-a.c [2021-04-16 04:29:19,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2808efd2f/b402027ebfd04a379c03f321323dece2/FLAG4583a6b38 [2021-04-16 04:29:19,683 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 04:29:19,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/linear-inequality-inv-a.c [2021-04-16 04:29:19,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2808efd2f/b402027ebfd04a379c03f321323dece2/FLAG4583a6b38 [2021-04-16 04:29:20,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2808efd2f/b402027ebfd04a379c03f321323dece2 [2021-04-16 04:29:20,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 04:29:20,126 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-16 04:29:20,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 04:29:20,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 04:29:20,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 04:29:20,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310edb0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20, skipping insertion in model container [2021-04-16 04:29:20,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 04:29:20,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 04:29:20,308 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-invariants/linear-inequality-inv-a.c[557,570] [2021-04-16 04:29:20,312 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-invariants/linear-inequality-inv-a.c[613,626] [2021-04-16 04:29:20,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 04:29:20,322 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 04:29:20,337 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-invariants/linear-inequality-inv-a.c[557,570] [2021-04-16 04:29:20,339 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-invariants/linear-inequality-inv-a.c[613,626] [2021-04-16 04:29:20,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 04:29:20,352 INFO L208 MainTranslator]: Completed translation [2021-04-16 04:29:20,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20 WrapperNode [2021-04-16 04:29:20,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 04:29:20,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 04:29:20,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 04:29:20,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 04:29:20,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 04:29:20,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 04:29:20,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 04:29:20,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 04:29:20,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20" (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 04:29:20,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 04:29:20,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 04:29:20,513 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 04:29:20,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 04:29:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 04:29:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 04:29:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 04:29:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2021-04-16 04:29:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 04:29:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 04:29:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 04:29:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 04:29:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 04:29:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 04:29:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 04:29:20,691 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 04:29:20,692 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 04:29:20,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 04:29:20 BoogieIcfgContainer [2021-04-16 04:29:20,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 04:29:20,694 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-04-16 04:29:20,694 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-04-16 04:29:20,694 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-04-16 04:29:20,697 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 04:29:20" (1/1) ... [2021-04-16 04:29:20,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:20,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 04:29:20,839 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< (mod v_main_~i~0_4 4294967296) (mod v_main_~n~0_5 256)) InVars {main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_5} OutVars{main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_5} AuxVars[] AssignedVars[] [2021-04-16 04:29:20,904 WARN L240 tifierPushTermWalker]: treesize reduction 10, result has 88.5 percent of original size [2021-04-16 04:29:20,929 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:20,940 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:20,951 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:20,961 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:20,967 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:20,975 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:20,983 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:23,102 WARN L205 SmtUtils]: Spent 2.11 s on a formula simplification that was a NOOP. DAG size: 5 [2021-04-16 04:29:23,103 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:25,254 WARN L205 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 7 [2021-04-16 04:29:25,255 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:29,294 WARN L205 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 3 [2021-04-16 04:29:29,299 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:33,111 WARN L205 SmtUtils]: Spent 3.81 s on a formula simplification that was a NOOP. DAG size: 3 [2021-04-16 04:29:33,112 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:35,372 WARN L205 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 3 [2021-04-16 04:29:35,372 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:39,399 WARN L205 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 9 [2021-04-16 04:29:39,400 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:39,429 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 04:29:39,440 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:39,449 INFO L108 tifierPushTermWalker]: treesize reduction 14, result has 6.7 percent of original size [2021-04-16 04:29:39,454 WARN L245 tifierPushTermWalker]: treesize reduction 10, result has 88.5 percent of original size 77 [2021-04-16 04:29:39,529 INFO L1067 elerationTransformer]: Accelerated Formula: (and (< (mod v_main_~i~0_4 4294967296) (mod v_main_~n~0_5 256)) (= v_main_~s~0_4 (+ v_main_~s~0_5 (mod v_main_~v~0_2 256))) (= v_main_~v~0_2 |v_main_#t~nondet8_2|) (= v_main_~i~0_3 (+ v_main_~i~0_4 1))) InVars {main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_5, main_#t~nondet8=|v_main_#t~nondet8_2|, main_~s~0=v_main_~s~0_5} OutVars{main_~v~0=v_main_~v~0_2, main_~i~0=v_main_~i~0_3, main_#t~pre9=|v_main_#t~pre9_1|, main_~n~0=v_main_~n~0_5, main_#t~nondet8=|v_main_#t~nondet8_1|, main_~s~0=v_main_~s~0_4} AuxVars[] AssignedVars[main_~v~0, main_~i~0, main_#t~pre9, main_#t~nondet8, main_~s~0] with Formula: (let ((.cse2 (mod v_main_~i~0_4 4294967296)) (.cse0 (= v_main_~s~0_5 v_main_~s~0_4)) (.cse1 (mod v_main_~n~0_5 256))) (or (and (= v_main_~i~0_4 v_main_~i~0_3) (= v_main_~v~0_5 v_main_~v~0_2) (= v_itFin_1 0) .cse0 (= |v_main_#t~nondet8_2| |v_main_#t~nondet8_1|) (= |v_main_#t~pre9_3| |v_main_#t~pre9_1|) (<= .cse1 .cse2)) (let ((.cse3 (+ v_itFin_1 v_main_~i~0_4))) (and (= v_main_~i~0_3 .cse3) (< .cse2 .cse1) (= v_main_~v~0_2 |v_main_#t~nondet8_2|) .cse0 (< 0 v_itFin_1) (<= (div (+ (* v_itFin_1 (- 1)) .cse1 (* v_main_~i~0_4 (- 1))) (- 4294967296)) (+ (div (+ v_main_~i~0_4 (- 4294967295)) 4294967296) 1)) (<= .cse1 (mod .cse3 4294967296)))))) InVars {main_~v~0=v_main_~v~0_5, main_~i~0=v_main_~i~0_4, main_#t~pre9=|v_main_#t~pre9_3|, main_~n~0=v_main_~n~0_5, main_#t~nondet8=|v_main_#t~nondet8_2|, main_~s~0=v_main_~s~0_5} OutVars{main_~v~0=v_main_~v~0_2, main_~i~0=v_main_~i~0_3, main_#t~pre9=|v_main_#t~pre9_1|, main_~n~0=v_main_~n~0_5, main_#t~nondet8=|v_main_#t~nondet8_1|, main_~s~0=v_main_~s~0_4} AuxVars[v_itFin_1] AssignedVars[main_~v~0, main_~i~0, main_#t~pre9, main_#t~nondet8, main_~s~0] [2021-04-16 04:29:39,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 04:29:39 BasicIcfg [2021-04-16 04:29:39,537 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-04-16 04:29:39,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 04:29:39,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 04:29:39,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 04:29:39,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 04:29:20" (1/4) ... [2021-04-16 04:29:39,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d82c878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 04:29:39, skipping insertion in model container [2021-04-16 04:29:39,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:29:20" (2/4) ... [2021-04-16 04:29:39,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d82c878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 04:29:39, skipping insertion in model container [2021-04-16 04:29:39,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 04:29:20" (3/4) ... [2021-04-16 04:29:39,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d82c878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 04:29:39, skipping insertion in model container [2021-04-16 04:29:39,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 04:29:39" (4/4) ... [2021-04-16 04:29:39,543 INFO L111 eAbstractionObserver]: Analyzing ICFG linear-inequality-inv-a.cJordan [2021-04-16 04:29:39,554 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-04-16 04:29:39,557 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-16 04:29:39,569 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-16 04:29:39,585 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 04:29:39,585 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-16 04:29:39,585 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-04-16 04:29:39,585 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 04:29:39,585 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 04:29:39,586 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 04:29:39,586 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 04:29:39,586 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 04:29:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-16 04:29:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-04-16 04:29:39,602 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 04:29:39,603 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 04:29:39,603 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 04:29:39,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 04:29:39,608 INFO L82 PathProgramCache]: Analyzing trace with hash 733275225, now seen corresponding path program 1 times [2021-04-16 04:29:39,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 04:29:39,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493253294] [2021-04-16 04:29:39,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 04:29:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:29:39,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:39,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:29:39,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:39,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:29:39,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 04:29:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:29:39,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:39,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:29:39,816 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 04:29:39,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493253294] [2021-04-16 04:29:39,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 04:29:39,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 04:29:39,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519255049] [2021-04-16 04:29:39,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 04:29:39,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 04:29:39,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 04:29:39,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 04:29:39,833 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:29:39,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 04:29:39,864 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-04-16 04:29:39,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 04:29:39,865 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), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-04-16 04:29:39,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 04:29:39,870 INFO L225 Difference]: With dead ends: 18 [2021-04-16 04:29:39,871 INFO L226 Difference]: Without dead ends: 14 [2021-04-16 04:29:39,872 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 04:29:39,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-04-16 04:29:39,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-04-16 04:29:39,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:29:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-04-16 04:29:39,895 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2021-04-16 04:29:39,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 04:29:39,895 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-04-16 04:29:39,895 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), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:29:39,895 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-04-16 04:29:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-04-16 04:29:39,896 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 04:29:39,896 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 04:29:39,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 04:29:39,896 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 04:29:39,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 04:29:39,897 INFO L82 PathProgramCache]: Analyzing trace with hash 733276186, now seen corresponding path program 1 times [2021-04-16 04:29:39,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 04:29:39,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456259303] [2021-04-16 04:29:39,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 04:29:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:29:39,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:39,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:29:39,938 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-04-16 04:29:39,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-16 04:29:39,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:39,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:29:40,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 04:29:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 04:29:40,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 04:29:40,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 04:29:40,010 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 04:29:40,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456259303] [2021-04-16 04:29:40,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 04:29:40,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 04:29:40,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762478014] [2021-04-16 04:29:40,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-16 04:29:40,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 04:29:40,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-16 04:29:40,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 04:29:40,013 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:29:40,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 04:29:40,120 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-04-16 04:29:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-16 04:29:40,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-04-16 04:29:40,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 04:29:40,122 INFO L225 Difference]: With dead ends: 15 [2021-04-16 04:29:40,122 INFO L226 Difference]: Without dead ends: 15 [2021-04-16 04:29:40,123 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 126.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-16 04:29:40,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-04-16 04:29:40,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-04-16 04:29:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:29:40,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-04-16 04:29:40,126 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2021-04-16 04:29:40,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 04:29:40,126 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-04-16 04:29:40,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 04:29:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-04-16 04:29:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-04-16 04:29:40,127 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 04:29:40,127 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 04:29:40,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 04:29:40,127 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 04:29:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 04:29:40,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1256753148, now seen corresponding path program 1 times [2021-04-16 04:29:40,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 04:29:40,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325648349] [2021-04-16 04:29:40,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 04:29:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 04:29:40,154 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 04:29:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 04:29:40,177 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 04:29:40,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-16 04:29:40,194 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 04:29:40,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-16 04:29:40,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 04:29:40 BasicIcfg [2021-04-16 04:29:40,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 04:29:40,212 INFO L168 Benchmark]: Toolchain (without parser) took 20086.29 ms. Allocated memory is still 185.6 MB. Free memory was 152.0 MB in the beginning and 157.1 MB in the end (delta: -5.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 04:29:40,213 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 185.6 MB. Free memory is still 168.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 04:29:40,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.32 ms. Allocated memory is still 185.6 MB. Free memory was 151.8 MB in the beginning and 142.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-04-16 04:29:40,213 INFO L168 Benchmark]: Boogie Preprocessor took 74.73 ms. Allocated memory is still 185.6 MB. Free memory was 142.4 MB in the beginning and 170.1 MB in the end (delta: -27.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. [2021-04-16 04:29:40,214 INFO L168 Benchmark]: RCFGBuilder took 262.68 ms. Allocated memory is still 185.6 MB. Free memory was 170.1 MB in the beginning and 156.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-04-16 04:29:40,214 INFO L168 Benchmark]: IcfgTransformer took 18843.13 ms. Allocated memory is still 185.6 MB. Free memory was 156.9 MB in the beginning and 132.2 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-04-16 04:29:40,215 INFO L168 Benchmark]: TraceAbstraction took 673.43 ms. Allocated memory is still 185.6 MB. Free memory was 131.7 MB in the beginning and 157.1 MB in the end (delta: -25.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 04:29:40,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 2 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1}, 1={1=2, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 185.6 MB. Free memory is still 168.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 222.32 ms. Allocated memory is still 185.6 MB. Free memory was 151.8 MB in the beginning and 142.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.73 ms. Allocated memory is still 185.6 MB. Free memory was 142.4 MB in the beginning and 170.1 MB in the end (delta: -27.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 262.68 ms. Allocated memory is still 185.6 MB. Free memory was 170.1 MB in the beginning and 156.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 18843.13 ms. Allocated memory is still 185.6 MB. Free memory was 156.9 MB in the beginning and 132.2 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 673.43 ms. Allocated memory is still 185.6 MB. Free memory was 131.7 MB in the beginning and 157.1 MB in the end (delta: -25.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5] unsigned char n = __VERIFIER_nondet_uchar(); [L6] COND FALSE !(n == 0) [L9] unsigned char v = 0; [L10] unsigned int s = 0; [L11] unsigned int i = 0; VAL [i=0, n=1, s=0, v=0] [L12] COND TRUE i < n [L13] v = __VERIFIER_nondet_uchar() [L14] s += v [L15] ++i VAL [++i=264, __VERIFIER_nondet_uchar()=-1, i=1, n=1, s=0, v=255] [L12] COND FALSE !(i < n) VAL [++i=264, __VERIFIER_nondet_uchar()=-1, i=1, n=1, s=0, v=255] [L17] COND TRUE s < v VAL [++i=264, __VERIFIER_nondet_uchar()=-1, i=1, n=1, s=0, v=255] [L18] reach_error() VAL [++i=264, __VERIFIER_nondet_uchar()=-1, i=1, n=1, s=0, v=255] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 612.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 9.7ms, AutomataDifference: 160.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 21 SDslu, 9 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 161.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.7ms SsaConstructionTime, 69.8ms SatisfiabilityAnalysisTime, 192.6ms InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 88 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...