/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/loops/nec20.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-dev-1a84f73
[2021-05-01 02:48:07,812 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-05-01 02:48:07,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-05-01 02:48:07,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-05-01 02:48:07,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-05-01 02:48:07,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-05-01 02:48:07,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-05-01 02:48:07,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-05-01 02:48:07,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-05-01 02:48:07,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-05-01 02:48:07,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-05-01 02:48:07,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-05-01 02:48:07,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-05-01 02:48:07,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-05-01 02:48:07,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-05-01 02:48:07,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-05-01 02:48:07,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-05-01 02:48:07,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-05-01 02:48:07,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-05-01 02:48:07,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-05-01 02:48:07,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-05-01 02:48:07,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-05-01 02:48:07,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-05-01 02:48:07,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-05-01 02:48:07,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-05-01 02:48:07,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-05-01 02:48:07,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-05-01 02:48:07,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-05-01 02:48:07,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-05-01 02:48:07,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-05-01 02:48:07,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-05-01 02:48:07,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-05-01 02:48:07,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2021-05-01 02:48:07,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-05-01 02:48:07,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-05-01 02:48:07,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-05-01 02:48:07,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-05-01 02:48:07,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-05-01 02:48:07,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-05-01 02:48:07,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-05-01 02:48:07,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf
[2021-05-01 02:48:07,896 INFO L113 SettingsManager]: Loading preferences was successful
[2021-05-01 02:48:07,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-05-01 02:48:07,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-05-01 02:48:07,899 INFO L138 SettingsManager]: * sizeof long=4
[2021-05-01 02:48:07,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-05-01 02:48:07,899 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-05-01 02:48:07,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-05-01 02:48:07,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-05-01 02:48:07,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-05-01 02:48:07,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-05-01 02:48:07,900 INFO L138 SettingsManager]: * sizeof long double=12
[2021-05-01 02:48:07,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-05-01 02:48:07,900 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-05-01 02:48:07,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-05-01 02:48:07,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-05-01 02:48:07,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-05-01 02:48:07,901 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-05-01 02:48:07,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-05-01 02:48:07,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-05-01 02:48:07,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-05-01 02:48:07,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-05-01 02:48:07,902 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-05-01 02:48:07,902 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-05-01 02:48:08,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-05-01 02:48:08,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-05-01 02:48:08,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-05-01 02:48:08,156 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-05-01 02:48:08,158 INFO L275 PluginConnector]: CDTParser initialized
[2021-05-01 02:48:08,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec20.c
[2021-05-01 02:48:08,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403e5b226/491288e9e36f4a5495953beb149727d4/FLAG0961335ea
[2021-05-01 02:48:08,533 INFO L306 CDTParser]: Found 1 translation units.
[2021-05-01 02:48:08,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec20.c
[2021-05-01 02:48:08,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403e5b226/491288e9e36f4a5495953beb149727d4/FLAG0961335ea
[2021-05-01 02:48:08,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403e5b226/491288e9e36f4a5495953beb149727d4
[2021-05-01 02:48:08,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-05-01 02:48:08,555 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-05-01 02:48:08,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-05-01 02:48:08,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-05-01 02:48:08,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-05-01 02:48:08,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:48:08" (1/1) ...
[2021-05-01 02:48:08,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8e1fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08, skipping insertion in model container
[2021-05-01 02:48:08,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:48:08" (1/1) ...
[2021-05-01 02:48:08,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-05-01 02:48:08,574 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-05-01 02:48:08,675 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/nec20.c[356,369]
[2021-05-01 02:48:08,691 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-05-01 02:48:08,696 INFO L203 MainTranslator]: Completed pre-run
[2021-05-01 02:48:08,727 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/nec20.c[356,369]
[2021-05-01 02:48:08,752 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-05-01 02:48:08,763 INFO L208 MainTranslator]: Completed translation
[2021-05-01 02:48:08,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08 WrapperNode
[2021-05-01 02:48:08,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-05-01 02:48:08,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-05-01 02:48:08,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-05-01 02:48:08,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-05-01 02:48:08,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08" (1/1) ...
[2021-05-01 02:48:08,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08" (1/1) ...
[2021-05-01 02:48:08,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08" (1/1) ...
[2021-05-01 02:48:08,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08" (1/1) ...
[2021-05-01 02:48:08,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08" (1/1) ...
[2021-05-01 02:48:08,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08" (1/1) ...
[2021-05-01 02:48:08,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08" (1/1) ...
[2021-05-01 02:48:08,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-05-01 02:48:08,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-05-01 02:48:08,794 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-05-01 02:48:08,794 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-05-01 02:48:08,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08" (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 02:48:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-05-01 02:48:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-05-01 02:48:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-05-01 02:48:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-05-01 02:48:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-05-01 02:48:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-05-01 02:48:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-05-01 02:48:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-05-01 02:48:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-05-01 02:48:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2021-05-01 02:48:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-05-01 02:48:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2021-05-01 02:48:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-05-01 02:48:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-05-01 02:48:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-05-01 02:48:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-05-01 02:48:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-05-01 02:48:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-05-01 02:48:08,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-05-01 02:48:09,061 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-05-01 02:48:09,061 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-05-01 02:48:09,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:09 BoogieIcfgContainer
[2021-05-01 02:48:09,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-05-01 02:48:09,069 INFO L113 PluginConnector]: ------------------------IcfgTransformer----------------------------
[2021-05-01 02:48:09,069 INFO L271 PluginConnector]: Initializing IcfgTransformer...
[2021-05-01 02:48:09,070 INFO L275 PluginConnector]: IcfgTransformer initialized
[2021-05-01 02:48:09,071 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:09" (1/1) ...
[2021-05-01 02:48:09,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:48:09,120 INFO L181 rdanLoopAcceleration]: Guard: Formula: (<= (mod v_main_~i~0_5 4294967296) (mod v_main_~n~0_5 4294967296)) InVars {main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_5} OutVars{main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_5} AuxVars[] AssignedVars[]
[2021-05-01 02:48:09,150 WARN L240 tifierPushTermWalker]: treesize reduction 7, result has 91.1 percent of original size
[2021-05-01 02:48:09,161 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,165 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,167 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,170 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,173 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,181 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,187 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,191 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,198 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,204 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,226 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size
[2021-05-01 02:48:09,234 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size
[2021-05-01 02:48:09,240 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,246 INFO L108 tifierPushTermWalker]: treesize reduction 14, result has 6.7 percent of original size
[2021-05-01 02:48:09,253 WARN L245 tifierPushTermWalker]: treesize reduction 7, result has 91.1 percent of original size 72
[2021-05-01 02:48:09,285 INFO L1111 elerationTransformer]: Accelerated Formula: (and (= v_main_~j~0_5 (+ v_main_~j~0_6 2)) (= (+ v_main_~i~0_5 1) v_main_~i~0_4) (<= (mod v_main_~i~0_5 4294967296) (mod v_main_~n~0_5 4294967296))) InVars {main_~j~0=v_main_~j~0_6, main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_5} OutVars{main_~j~0=v_main_~j~0_5, main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_5, main_#t~post9=|v_main_#t~post9_1|} AuxVars[] AssignedVars[main_~j~0, main_~i~0, main_#t~post9] with Formula: (let ((.cse1 (mod v_main_~i~0_5 4294967296)) (.cse0 (mod v_main_~n~0_5 4294967296))) (or (and (= v_main_~j~0_6 v_main_~j~0_5) (< .cse0 .cse1) (= |v_main_#t~post9_3| |v_main_#t~post9_1|) (= v_itFin_1 0) (= v_main_~i~0_4 v_main_~i~0_5)) (let ((.cse2 (+ v_itFin_1 v_main_~i~0_5))) (and (<= (div (+ (* v_itFin_1 (- 1)) (* v_main_~i~0_5 (- 1)) .cse0 1) (- 4294967296)) (+ (div (+ v_main_~i~0_5 (- 4294967295)) 4294967296) 1)) (< 0 v_itFin_1) (< .cse0 (mod .cse2 4294967296)) (= .cse2 v_main_~i~0_4) (= v_main_~j~0_5 (+ (* 2 v_itFin_1) v_main_~j~0_6)) (<= .cse1 .cse0))))) InVars {main_~i~0=v_main_~i~0_5, main_~n~0=v_main_~n~0_5, main_#t~post9=|v_main_#t~post9_3|, main_~j~0=v_main_~j~0_6} OutVars{main_~i~0=v_main_~i~0_4, main_~n~0=v_main_~n~0_5, main_#t~post9=|v_main_#t~post9_1|, main_~j~0=v_main_~j~0_5} AuxVars[v_itFin_1] AssignedVars[main_~j~0, main_~i~0, main_#t~post9]
[2021-05-01 02:48:09,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:48:09 BasicIcfg
[2021-05-01 02:48:09,291 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2021-05-01 02:48:09,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-05-01 02:48:09,292 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-05-01 02:48:09,294 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-05-01 02:48:09,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 02:48:08" (1/4) ...
[2021-05-01 02:48:09,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6666909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:48:09, skipping insertion in model container
[2021-05-01 02:48:09,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:08" (2/4) ...
[2021-05-01 02:48:09,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6666909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:48:09, skipping insertion in model container
[2021-05-01 02:48:09,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:09" (3/4) ...
[2021-05-01 02:48:09,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6666909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:48:09, skipping insertion in model container
[2021-05-01 02:48:09,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:48:09" (4/4) ...
[2021-05-01 02:48:09,296 INFO L111 eAbstractionObserver]: Analyzing ICFG nec20.cJordan
[2021-05-01 02:48:09,303 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION
[2021-05-01 02:48:09,306 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-05-01 02:48:09,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-05-01 02:48:09,327 INFO L376 AbstractCegarLoop]: Interprodecural is true
[2021-05-01 02:48:09,328 INFO L377 AbstractCegarLoop]: Hoare is false
[2021-05-01 02:48:09,328 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates
[2021-05-01 02:48:09,328 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-05-01 02:48:09,328 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-05-01 02:48:09,328 INFO L381 AbstractCegarLoop]: Difference is false
[2021-05-01 02:48:09,328 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-05-01 02:48:09,328 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-05-01 02:48:09,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 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 02:48:09,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-05-01 02:48:09,341 INFO L511 BasicCegarLoop]: Found error trace
[2021-05-01 02:48:09,342 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 02:48:09,342 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 02:48:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 02:48:09,349 INFO L82 PathProgramCache]: Analyzing trace with hash 936597551, now seen corresponding path program 1 times
[2021-05-01 02:48:09,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-05-01 02:48:09,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775133938]
[2021-05-01 02:48:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 02:48:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:48:09,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:09,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:09,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-05-01 02:48:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:48:09,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:09,534 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 02:48:09,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-05-01 02:48:09,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775133938]
[2021-05-01 02:48:09,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775133938] provided 1 perfect and 0 imperfect interpolant sequences
[2021-05-01 02:48:09,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-05-01 02:48:09,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-05-01 02:48:09,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500439657]
[2021-05-01 02:48:09,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-05-01 02:48:09,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-05-01 02:48:09,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-05-01 02:48:09,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-05-01 02:48:09,552 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 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 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 02:48:09,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-05-01 02:48:09,603 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions.
[2021-05-01 02:48:09,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-05-01 02:48:09,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 15
[2021-05-01 02:48:09,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-05-01 02:48:09,608 INFO L225 Difference]: With dead ends: 25
[2021-05-01 02:48:09,608 INFO L226 Difference]: Without dead ends: 16
[2021-05-01 02:48:09,609 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-05-01 02:48:09,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2021-05-01 02:48:09,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2021-05-01 02:48:09,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 02:48:09,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions.
[2021-05-01 02:48:09,627 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 15
[2021-05-01 02:48:09,627 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-05-01 02:48:09,628 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions.
[2021-05-01 02:48:09,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 02:48:09,628 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2021-05-01 02:48:09,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-05-01 02:48:09,629 INFO L511 BasicCegarLoop]: Found error trace
[2021-05-01 02:48:09,629 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 02:48:09,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-05-01 02:48:09,630 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 02:48:09,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 02:48:09,630 INFO L82 PathProgramCache]: Analyzing trace with hash 965226702, now seen corresponding path program 1 times
[2021-05-01 02:48:09,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-05-01 02:48:09,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108882932]
[2021-05-01 02:48:09,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 02:48:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:48:09,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:09,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:48:09,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:48:09,723 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size
[2021-05-01 02:48:09,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:09,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:09,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-05-01 02:48:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:48:09,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:09,769 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 02:48:09,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-05-01 02:48:09,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108882932]
[2021-05-01 02:48:09,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108882932] provided 1 perfect and 0 imperfect interpolant sequences
[2021-05-01 02:48:09,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-05-01 02:48:09,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-05-01 02:48:09,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566088695]
[2021-05-01 02:48:09,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-05-01 02:48:09,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-05-01 02:48:09,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-05-01 02:48:09,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-05-01 02:48:09,773 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 02:48:09,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-05-01 02:48:09,893 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions.
[2021-05-01 02:48:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-05-01 02:48:09,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 15
[2021-05-01 02:48:09,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-05-01 02:48:09,895 INFO L225 Difference]: With dead ends: 22
[2021-05-01 02:48:09,896 INFO L226 Difference]: Without dead ends: 22
[2021-05-01 02:48:09,896 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 96.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2021-05-01 02:48:09,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2021-05-01 02:48:09,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19.
[2021-05-01 02:48:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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 02:48:09,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions.
[2021-05-01 02:48:09,902 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15
[2021-05-01 02:48:09,902 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-05-01 02:48:09,902 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions.
[2021-05-01 02:48:09,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 02:48:09,902 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions.
[2021-05-01 02:48:09,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-05-01 02:48:09,903 INFO L511 BasicCegarLoop]: Found error trace
[2021-05-01 02:48:09,903 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 02:48:09,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-05-01 02:48:09,903 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 02:48:09,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 02:48:09,904 INFO L82 PathProgramCache]: Analyzing trace with hash -842227761, now seen corresponding path program 1 times
[2021-05-01 02:48:09,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-05-01 02:48:09,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344440533]
[2021-05-01 02:48:09,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 02:48:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:48:09,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:09,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:48:09,933 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.0 percent of original size
[2021-05-01 02:48:09,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48
[2021-05-01 02:48:09,964 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size
[2021-05-01 02:48:09,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38
[2021-05-01 02:48:09,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:09,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:09,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-05-01 02:48:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:48:10,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:48:10,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:48:10,002 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 02:48:10,002 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-05-01 02:48:10,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344440533]
[2021-05-01 02:48:10,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344440533] provided 1 perfect and 0 imperfect interpolant sequences
[2021-05-01 02:48:10,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-05-01 02:48:10,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-05-01 02:48:10,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321107227]
[2021-05-01 02:48:10,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-05-01 02:48:10,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-05-01 02:48:10,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-05-01 02:48:10,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-05-01 02:48:10,005 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 02:48:10,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-05-01 02:48:10,123 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions.
[2021-05-01 02:48:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-05-01 02:48:10,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 15
[2021-05-01 02:48:10,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-05-01 02:48:10,125 INFO L225 Difference]: With dead ends: 23
[2021-05-01 02:48:10,125 INFO L226 Difference]: Without dead ends: 23
[2021-05-01 02:48:10,125 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 115.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-05-01 02:48:10,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2021-05-01 02:48:10,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17.
[2021-05-01 02:48:10,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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 02:48:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions.
[2021-05-01 02:48:10,127 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15
[2021-05-01 02:48:10,127 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-05-01 02:48:10,127 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions.
[2021-05-01 02:48:10,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 02:48:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions.
[2021-05-01 02:48:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-05-01 02:48:10,128 INFO L511 BasicCegarLoop]: Found error trace
[2021-05-01 02:48:10,128 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 02:48:10,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-05-01 02:48:10,128 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 02:48:10,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 02:48:10,128 INFO L82 PathProgramCache]: Analyzing trace with hash 686516073, now seen corresponding path program 1 times
[2021-05-01 02:48:10,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-05-01 02:48:10,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167764215]
[2021-05-01 02:48:10,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 02:48:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-05-01 02:48:10,145 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-05-01 02:48:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-05-01 02:48:10,165 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-05-01 02:48:10,177 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-05-01 02:48:10,177 INFO L620 BasicCegarLoop]: Counterexample might be feasible
[2021-05-01 02:48:10,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-05-01 02:48:10,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:48:10 BasicIcfg
[2021-05-01 02:48:10,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-05-01 02:48:10,193 INFO L168 Benchmark]: Toolchain (without parser) took 1637.79 ms. Allocated memory is still 185.6 MB. Free memory was 151.2 MB in the beginning and 103.5 MB in the end (delta: 47.7 MB). Peak memory consumption was 48.6 MB. Max. memory is 8.0 GB.
[2021-05-01 02:48:10,193 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 185.6 MB. Free memory is still 167.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-05-01 02:48:10,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.78 ms. Allocated memory is still 185.6 MB. Free memory was 150.9 MB in the beginning and 168.1 MB in the end (delta: -17.2 MB). Peak memory consumption was 11.8 MB. Max. memory is 8.0 GB.
[2021-05-01 02:48:10,193 INFO L168 Benchmark]: Boogie Preprocessor took 29.08 ms. Allocated memory is still 185.6 MB. Free memory was 168.1 MB in the beginning and 166.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
[2021-05-01 02:48:10,194 INFO L168 Benchmark]: RCFGBuilder took 274.56 ms. Allocated memory is still 185.6 MB. Free memory was 166.6 MB in the beginning and 151.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
[2021-05-01 02:48:10,194 INFO L168 Benchmark]: IcfgTransformer took 222.00 ms. Allocated memory is still 185.6 MB. Free memory was 151.9 MB in the beginning and 134.1 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB.
[2021-05-01 02:48:10,194 INFO L168 Benchmark]: TraceAbstraction took 899.80 ms. Allocated memory is still 185.6 MB. Free memory was 133.5 MB in the beginning and 103.5 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB.
[2021-05-01 02:48:10,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from IcfgTransformer:
- StatisticsResult: Jordan loop acceleration statistics
1 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 0.22 ms. Allocated memory is still 185.6 MB. Free memory is still 167.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 206.78 ms. Allocated memory is still 185.6 MB. Free memory was 150.9 MB in the beginning and 168.1 MB in the end (delta: -17.2 MB). Peak memory consumption was 11.8 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 29.08 ms. Allocated memory is still 185.6 MB. Free memory was 168.1 MB in the beginning and 166.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 274.56 ms. Allocated memory is still 185.6 MB. Free memory was 166.6 MB in the beginning and 151.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
* IcfgTransformer took 222.00 ms. Allocated memory is still 185.6 MB. Free memory was 151.9 MB in the beginning and 134.1 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 899.80 ms. Allocated memory is still 185.6 MB. Free memory was 133.5 MB in the beginning and 103.5 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 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:
[L12] int b;
VAL [\old(b)=1030, b=0]
[L15] _Bool k=__VERIFIER_nondet_bool();
[L16] unsigned int i,n,j;
[L17] int a[1025];
VAL [b=0, k=1]
[L19] COND TRUE \read(k)
[L20] n=0
VAL [b=0, k=1, n=0]
[L25] i=0
[L26] j=__VERIFIER_nondet_uint()
[L27] COND FALSE !(j > 10000)
VAL [b=0, i=0, j=1023, k=1, n=0]
[L30] COND TRUE i <= n
[L31] i++
[L32] j= j +2
VAL [b=0, i=1, i++=1028, j=1025, k=1, n=0]
[L30] COND FALSE !(i <= n)
VAL [b=0, i=1, i++=1028, j=1025, k=1, n=0]
[L35] a[i]=0
VAL [b=0, i=1, i++=1028, j=1025, k=1, n=0]
[L36] CALL __VERIFIER_assert(j<1025)
VAL [\old(cond)=0, b=0]
[L7] COND TRUE !(cond)
VAL [\old(cond)=0, b=0, cond=0]
[L8] reach_error()
VAL [\old(cond)=0, b=0, cond=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 851.8ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 8.0ms, AutomataDifference: 313.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58 SDtfs, 53 SDslu, 25 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 115.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 242.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.9ms SsaConstructionTime, 89.8ms SatisfiabilityAnalysisTime, 276.4ms InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...