/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-acceleration/simple_3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 03:31:01,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 03:31:01,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 03:31:01,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 03:31:01,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 03:31:01,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 03:31:01,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 03:31:01,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 03:31:01,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 03:31:01,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 03:31:01,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 03:31:01,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 03:31:01,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 03:31:01,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 03:31:01,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 03:31:01,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 03:31:01,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 03:31:01,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 03:31:01,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 03:31:01,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 03:31:01,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 03:31:01,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 03:31:01,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 03:31:01,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 03:31:01,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-16 03:31:01,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-16 03:31:01,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-16 03:31:01,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-16 03:31:01,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-16 03:31:01,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-16 03:31:01,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 03:31:01,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 03:31:01,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 03:31:01,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 03:31:01,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 03:31:01,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 03:31:01,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 03:31:01,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 03:31:01,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 03:31:01,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 03:31:01,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 03:31:01,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-04-16 03:31:01,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 03:31:01,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 03:31:01,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 03:31:01,070 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 03:31:01,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 03:31:01,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 03:31:01,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 03:31:01,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 03:31:01,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 03:31:01,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 03:31:01,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 03:31:01,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-16 03:31:01,072 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-04-16 03:31:01,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 03:31:01,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 03:31:01,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 03:31:01,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 03:31:01,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 03:31:01,322 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 03:31:01,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2021-04-16 03:31:01,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1925be0/b01db792ebd641a28027c1a7c5b71f74/FLAGa434fca34 [2021-04-16 03:31:01,649 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 03:31:01,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2021-04-16 03:31:01,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1925be0/b01db792ebd641a28027c1a7c5b71f74/FLAGa434fca34 [2021-04-16 03:31:02,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1925be0/b01db792ebd641a28027c1a7c5b71f74 [2021-04-16 03:31:02,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 03:31:02,095 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-16 03:31:02,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 03:31:02,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 03:31:02,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 03:31:02,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb6f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02, skipping insertion in model container [2021-04-16 03:31:02,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 03:31:02,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 03:31:02,193 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-acceleration/simple_3-1.c[376,389] [2021-04-16 03:31:02,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 03:31:02,203 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 03:31:02,210 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-acceleration/simple_3-1.c[376,389] [2021-04-16 03:31:02,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 03:31:02,220 INFO L208 MainTranslator]: Completed translation [2021-04-16 03:31:02,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02 WrapperNode [2021-04-16 03:31:02,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 03:31:02,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 03:31:02,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 03:31:02,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 03:31:02,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 03:31:02,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 03:31:02,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 03:31:02,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 03:31:02,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02" (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 03:31:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 03:31:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 03:31:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 03:31:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 03:31:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 03:31:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 03:31:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 03:31:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 03:31:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 03:31:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2021-04-16 03:31:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 03:31:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 03:31:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 03:31:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 03:31:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 03:31:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 03:31:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 03:31:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 03:31:02,582 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 03:31:02,583 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 03:31:02,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 03:31:02 BoogieIcfgContainer [2021-04-16 03:31:02,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 03:31:02,584 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-04-16 03:31:02,584 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-04-16 03:31:02,585 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-04-16 03:31:02,586 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 03:31:02" (1/1) ... [2021-04-16 03:31:02,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:02,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 03:31:02,642 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< (mod v_main_~x~0_4 4294967296) (mod v_main_~N~0_3 65536)) InVars {main_~x~0=v_main_~x~0_4, main_~N~0=v_main_~N~0_3} OutVars{main_~x~0=v_main_~x~0_4, main_~N~0=v_main_~N~0_3} AuxVars[] AssignedVars[] [2021-04-16 03:31:02,658 WARN L240 tifierPushTermWalker]: treesize reduction 10, result has 86.7 percent of original size [2021-04-16 03:31:02,665 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:02,670 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:02,673 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:02,763 INFO L108 tifierPushTermWalker]: treesize reduction 16, result has 5.9 percent of original size [2021-04-16 03:31:02,772 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 03:31:02,797 INFO L108 tifierPushTermWalker]: treesize reduction 25, result has 3.8 percent of original size [2021-04-16 03:31:02,802 INFO L108 tifierPushTermWalker]: treesize reduction 14, result has 6.7 percent of original size [2021-04-16 03:31:02,810 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:02,815 INFO L108 tifierPushTermWalker]: treesize reduction 17, result has 5.6 percent of original size [2021-04-16 03:31:02,829 INFO L108 tifierPushTermWalker]: treesize reduction 13, result has 7.1 percent of original size [2021-04-16 03:31:02,845 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:02,859 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:02,863 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:02,873 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:02,877 WARN L245 tifierPushTermWalker]: treesize reduction 10, result has 86.7 percent of original size 65 [2021-04-16 03:31:02,918 INFO L1067 elerationTransformer]: Accelerated Formula: (and (= v_main_~x~0_3 (+ v_main_~x~0_4 2)) (< (mod v_main_~x~0_4 4294967296) (mod v_main_~N~0_3 65536))) InVars {main_~x~0=v_main_~x~0_4, main_~N~0=v_main_~N~0_3} OutVars{main_~x~0=v_main_~x~0_3, main_~N~0=v_main_~N~0_3} AuxVars[] AssignedVars[main_~x~0] with Formula: (let ((.cse1 (mod v_main_~x~0_4 4294967296)) (.cse0 (mod v_main_~N~0_3 65536))) (or (and (= v_itFin_1 0) (= v_main_~x~0_4 v_main_~x~0_3) (<= .cse0 .cse1)) (and (< 0 v_itFin_1) (<= .cse0 (mod (+ (* v_itFin_1 2) v_main_~x~0_4) 4294967296)) (= v_main_~x~0_3 (+ (* 2 v_itFin_1) v_main_~x~0_4)) (< .cse1 .cse0) (<= (div (+ (* v_itFin_1 (- 1)) (div (+ .cse0 (* v_main_~x~0_4 (- 1)) (- 1)) 2) 1) (- 2147483648)) (+ (div (+ (* (div (+ v_main_~x~0_4 (- 4294967296)) (- 2)) (- 1)) 1) 2147483648) 1))))) InVars {main_~x~0=v_main_~x~0_4, main_~N~0=v_main_~N~0_3} OutVars{main_~x~0=v_main_~x~0_3, main_~N~0=v_main_~N~0_3} AuxVars[v_itFin_1] AssignedVars[main_~x~0] [2021-04-16 03:31:02,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 03:31:02 BasicIcfg [2021-04-16 03:31:02,924 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-04-16 03:31:02,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 03:31:02,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 03:31:02,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 03:31:02,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 03:31:02" (1/4) ... [2021-04-16 03:31:02,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3b6e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 03:31:02, skipping insertion in model container [2021-04-16 03:31:02,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:31:02" (2/4) ... [2021-04-16 03:31:02,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3b6e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 03:31:02, skipping insertion in model container [2021-04-16 03:31:02,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 03:31:02" (3/4) ... [2021-04-16 03:31:02,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3b6e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 03:31:02, skipping insertion in model container [2021-04-16 03:31:02,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 03:31:02" (4/4) ... [2021-04-16 03:31:02,929 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_3-1.cJordan [2021-04-16 03:31:02,933 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-04-16 03:31:02,935 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 03:31:02,946 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 03:31:02,958 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 03:31:02,958 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-16 03:31:02,958 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-04-16 03:31:02,958 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 03:31:02,958 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 03:31:02,958 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 03:31:02,959 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 03:31:02,959 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 03:31:02,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-04-16 03:31:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-04-16 03:31:02,978 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 03:31:02,979 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 03:31:02,979 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 03:31:02,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 03:31:02,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1690616289, now seen corresponding path program 1 times [2021-04-16 03:31:02,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 03:31:02,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866242951] [2021-04-16 03:31:02,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 03:31:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:31:03,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:03,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:31:03,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:03,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:31:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 03:31:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:31:03,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:31:03,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:31:03,144 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 03:31:03,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866242951] [2021-04-16 03:31:03,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 03:31:03,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 03:31:03,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409938524] [2021-04-16 03:31:03,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 03:31:03,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 03:31:03,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 03:31:03,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 03:31:03,157 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2021-04-16 03:31:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 03:31:03,184 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-04-16 03:31:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 03:31:03,186 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 [2021-04-16 03:31:03,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 03:31:03,190 INFO L225 Difference]: With dead ends: 18 [2021-04-16 03:31:03,190 INFO L226 Difference]: Without dead ends: 12 [2021-04-16 03:31:03,192 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 03:31:03,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-04-16 03:31:03,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-04-16 03:31:03,211 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) [2021-04-16 03:31:03,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-04-16 03:31:03,212 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2021-04-16 03:31:03,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 03:31:03,212 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-04-16 03:31:03,212 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) [2021-04-16 03:31:03,213 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-04-16 03:31:03,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-04-16 03:31:03,213 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 03:31:03,214 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 03:31:03,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 03:31:03,214 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 03:31:03,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 03:31:03,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1689692768, now seen corresponding path program 1 times [2021-04-16 03:31:03,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 03:31:03,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421764104] [2021-04-16 03:31:03,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 03:31:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 03:31:03,244 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 03:31:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 03:31:03,269 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 03:31:03,289 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-16 03:31:03,289 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 03:31:03,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 03:31:03,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 03:31:03 BasicIcfg [2021-04-16 03:31:03,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 03:31:03,308 INFO L168 Benchmark]: Toolchain (without parser) took 1213.09 ms. Allocated memory is still 195.0 MB. Free memory was 160.8 MB in the beginning and 118.1 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.2 MB. Max. memory is 8.0 GB. [2021-04-16 03:31:03,309 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 195.0 MB. Free memory is still 177.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 03:31:03,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 124.12 ms. Allocated memory is still 195.0 MB. Free memory was 160.6 MB in the beginning and 151.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-04-16 03:31:03,310 INFO L168 Benchmark]: Boogie Preprocessor took 57.57 ms. Allocated memory is still 195.0 MB. Free memory was 151.4 MB in the beginning and 179.4 MB in the end (delta: -28.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. [2021-04-16 03:31:03,310 INFO L168 Benchmark]: RCFGBuilder took 304.31 ms. Allocated memory is still 195.0 MB. Free memory was 179.4 MB in the beginning and 165.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-04-16 03:31:03,311 INFO L168 Benchmark]: IcfgTransformer took 339.94 ms. Allocated memory is still 195.0 MB. Free memory was 165.8 MB in the beginning and 146.4 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-04-16 03:31:03,314 INFO L168 Benchmark]: TraceAbstraction took 382.22 ms. Allocated memory is still 195.0 MB. Free memory was 145.9 MB in the beginning and 118.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2021-04-16 03:31:03,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {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 0.11 ms. Allocated memory is still 195.0 MB. Free memory is still 177.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 124.12 ms. Allocated memory is still 195.0 MB. Free memory was 160.6 MB in the beginning and 151.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 57.57 ms. Allocated memory is still 195.0 MB. Free memory was 151.4 MB in the beginning and 179.4 MB in the end (delta: -28.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 304.31 ms. Allocated memory is still 195.0 MB. Free memory was 179.4 MB in the beginning and 165.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 339.94 ms. Allocated memory is still 195.0 MB. Free memory was 165.8 MB in the beginning and 146.4 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 382.22 ms. Allocated memory is still 195.0 MB. Free memory was 145.9 MB in the beginning and 118.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] unsigned int x = 0; [L15] unsigned short N = __VERIFIER_nondet_ushort(); [L17] COND FALSE !(x < N) VAL [N=0, x=0] [L21] CALL __VERIFIER_assert(x % 2) VAL [\old(cond)=0] [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 334.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.4ms, AutomataDifference: 42.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 5 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.4ms SsaConstructionTime, 45.7ms SatisfiabilityAnalysisTime, 70.1ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...