/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 19:09:53,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 19:09:53,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 19:09:53,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 19:09:53,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 19:09:53,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 19:09:53,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 19:09:53,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 19:09:53,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 19:09:53,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 19:09:53,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 19:09:53,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 19:09:53,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 19:09:53,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 19:09:53,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 19:09:53,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 19:09:53,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 19:09:53,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 19:09:53,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 19:09:53,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 19:09:53,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 19:09:53,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 19:09:53,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 19:09:53,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 19:09:53,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 19:09:53,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 19:09:53,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 19:09:53,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 19:09:53,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 19:09:53,989 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 19:09:53,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 19:09:53,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 19:09:53,990 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 19:09:53,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 19:09:53,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 19:09:53,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 19:09:53,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 19:09:53,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 19:09:53,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 19:09:53,991 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 19:09:53,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 19:09:53,991 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 19:09:53,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 19:09:53,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 19:09:53,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 19:09:53,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 19:09:53,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 19:09:53,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 19:09:53,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 19:09:53,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 19:09:53,993 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 19:09:53,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 19:09:54,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 19:09:54,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 19:09:54,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 19:09:54,320 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 19:09:54,320 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 19:09:54,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i [2021-05-02 19:09:54,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eb7f8ff9/da937a0ddc92472e81c8eded04c21fcd/FLAG1306c0c9d [2021-05-02 19:09:54,763 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 19:09:54,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i [2021-05-02 19:09:54,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eb7f8ff9/da937a0ddc92472e81c8eded04c21fcd/FLAG1306c0c9d [2021-05-02 19:09:54,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eb7f8ff9/da937a0ddc92472e81c8eded04c21fcd [2021-05-02 19:09:54,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 19:09:54,787 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 19:09:54,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 19:09:54,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 19:09:54,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 19:09:54,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 07:09:54" (1/1) ... [2021-05-02 19:09:54,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2bbb27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:54, skipping insertion in model container [2021-05-02 19:09:54,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 07:09:54" (1/1) ... [2021-05-02 19:09:54,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 19:09:54,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 19:09:54,921 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i[872,885] [2021-05-02 19:09:54,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 19:09:54,933 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 19:09:54,957 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i[872,885] [2021-05-02 19:09:54,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 19:09:55,017 INFO L208 MainTranslator]: Completed translation [2021-05-02 19:09:55,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55 WrapperNode [2021-05-02 19:09:55,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 19:09:55,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 19:09:55,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 19:09:55,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 19:09:55,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55" (1/1) ... [2021-05-02 19:09:55,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55" (1/1) ... [2021-05-02 19:09:55,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55" (1/1) ... [2021-05-02 19:09:55,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55" (1/1) ... [2021-05-02 19:09:55,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55" (1/1) ... [2021-05-02 19:09:55,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55" (1/1) ... [2021-05-02 19:09:55,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55" (1/1) ... [2021-05-02 19:09:55,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 19:09:55,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 19:09:55,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 19:09:55,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 19:09:55,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55" (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 [2021-05-02 19:09:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 19:09:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 19:09:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 19:09:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 19:09:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 19:09:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 19:09:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-02 19:09:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-02 19:09:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 19:09:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 19:09:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-02 19:09:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-05-02 19:09:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 19:09:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 19:09:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 19:09:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 19:09:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 19:09:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 19:09:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 19:09:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 19:09:55,343 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 19:09:55,344 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-02 19:09:55,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:09:55 BoogieIcfgContainer [2021-05-02 19:09:55,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 19:09:55,345 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 19:09:55,345 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 19:09:55,346 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 19:09:55,348 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:09:55" (1/1) ... [2021-05-02 19:09:55,418 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< (* v_main_~i~0_3 v_main_~i~0_3) 100) InVars {main_~i~0=v_main_~i~0_3} OutVars{main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[] [2021-05-02 19:09:55,441 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 94.2 percent of original size [2021-05-02 19:09:55,577 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 19:09:55,613 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-02 19:09:55,644 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 94.2 percent of original size 65 [2021-05-02 19:09:55,680 INFO L1112 elerationTransformer]: Accelerated Formula: (and (= v_main_~i~0_2 (+ v_main_~i~0_3 1)) (< (* v_main_~i~0_3 v_main_~i~0_3) 100)) InVars {main_~i~0=v_main_~i~0_3} OutVars{main_~i~0=v_main_~i~0_2} AuxVars[] AssignedVars[main_~i~0] with Formula: (let ((.cse0 (* v_main_~i~0_3 v_main_~i~0_3))) (or (and (< 0 v_itFin_1) (< .cse0 100) (= v_main_~i~0_2 (+ v_itFin_1 v_main_~i~0_3)) (forall ((v_it_1 Int)) (or (< v_itFin_1 (+ v_it_1 1)) (< v_it_1 1) (< (+ (* v_main_~i~0_3 v_main_~i~0_3) (* 2 (* v_it_1 v_main_~i~0_3)) (* v_it_1 v_it_1)) 100))) (<= 100 (+ .cse0 (* 2 (* v_itFin_1 v_main_~i~0_3)) (* v_itFin_1 v_itFin_1)))) (and (= v_itFin_1 0) (= v_main_~i~0_3 v_main_~i~0_2) (<= 100 .cse0)))) InVars {main_~i~0=v_main_~i~0_3} OutVars{main_~i~0=v_main_~i~0_2} AuxVars[v_itFin_1] AssignedVars[main_~i~0] [2021-05-02 19:09:55,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 07:09:55 BasicIcfg [2021-05-02 19:09:55,687 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 19:09:55,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 19:09:55,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 19:09:55,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 19:09:55,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 07:09:54" (1/4) ... [2021-05-02 19:09:55,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a88b9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 07:09:55, skipping insertion in model container [2021-05-02 19:09:55,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:09:55" (2/4) ... [2021-05-02 19:09:55,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a88b9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 07:09:55, skipping insertion in model container [2021-05-02 19:09:55,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:09:55" (3/4) ... [2021-05-02 19:09:55,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a88b9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 07:09:55, skipping insertion in model container [2021-05-02 19:09:55,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 07:09:55" (4/4) ... [2021-05-02 19:09:55,697 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark52_polynomial.iJordan [2021-05-02 19:09:55,701 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 19:09:55,708 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 19:09:55,720 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 19:09:55,744 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 19:09:55,744 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 19:09:55,744 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 19:09:55,744 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 19:09:55,744 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 19:09:55,744 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 19:09:55,744 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 19:09:55,744 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 19:09:55,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-02 19:09:55,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-02 19:09:55,761 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:09:55,762 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:09:55,762 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:09:55,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:09:55,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times [2021-05-02 19:09:55,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:09:55,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827936137] [2021-05-02 19:09:55,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:09:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:09:55,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 19:09:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:09:55,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 19:09:55,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:09:55,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827936137] [2021-05-02 19:09:55,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827936137] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:09:55,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:09:55,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 19:09:55,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740592510] [2021-05-02 19:09:55,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 19:09:55,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:09:55,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 19:09:55,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:09:55,954 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:09:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:09:55,986 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-05-02 19:09:55,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 19:09:55,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-05-02 19:09:55,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:09:55,993 INFO L225 Difference]: With dead ends: 20 [2021-05-02 19:09:55,993 INFO L226 Difference]: Without dead ends: 13 [2021-05-02 19:09:55,994 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:09:56,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-02 19:09:56,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-02 19:09:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:09:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-02 19:09:56,015 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2021-05-02 19:09:56,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:09:56,015 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-02 19:09:56,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:09:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-02 19:09:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-02 19:09:56,017 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:09:56,017 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:09:56,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 19:09:56,017 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:09:56,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:09:56,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times [2021-05-02 19:09:56,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:09:56,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721383968] [2021-05-02 19:09:56,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:09:56,047 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:09:56,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978396882] [2021-05-02 19:09:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:09:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:09:56,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-05-02 19:09:56,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:09:56,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 19:09:56,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:09:56,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721383968] [2021-05-02 19:09:56,201 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:09:56,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978396882] [2021-05-02 19:09:56,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978396882] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:09:56,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:09:56,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 19:09:56,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929259461] [2021-05-02 19:09:56,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 19:09:56,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:09:56,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 19:09:56,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:09:56,203 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:09:56,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:09:56,212 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-05-02 19:09:56,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 19:09:56,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-05-02 19:09:56,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:09:56,213 INFO L225 Difference]: With dead ends: 14 [2021-05-02 19:09:56,213 INFO L226 Difference]: Without dead ends: 14 [2021-05-02 19:09:56,214 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:09:56,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-05-02 19:09:56,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-05-02 19:09:56,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:09:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-02 19:09:56,216 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-05-02 19:09:56,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:09:56,216 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-02 19:09:56,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:09:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-02 19:09:56,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-02 19:09:56,217 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:09:56,217 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:09:56,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 19:09:56,435 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:09:56,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:09:56,436 INFO L82 PathProgramCache]: Analyzing trace with hash 306506437, now seen corresponding path program 1 times [2021-05-02 19:09:56,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:09:56,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865291571] [2021-05-02 19:09:56,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:09:56,450 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 19:09:56,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1133243111] [2021-05-02 19:09:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:09:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:09:56,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2021-05-02 19:09:56,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:09:56,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,720 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-05-02 19:09:56,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:56,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:57,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:58,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:59,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:59,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:59,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:09:59,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,078 WARN L205 SmtUtils]: Spent 10.03 s on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 19:10:09,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:09,614 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-05-02 19:10:10,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:10,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,186 WARN L205 SmtUtils]: Spent 10.07 s on a formula simplification that was a NOOP. DAG size: 35 [2021-05-02 19:10:21,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:21,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:22,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:24,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 19:10:25,036 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_main_~i~0_9 Int) (v_main_~i~0_BEFORE_CALL_1 Int)) (and (forall ((v_it_1 Int)) (or (< v_it_1 1) (< v_main_~i~0_BEFORE_CALL_1 (+ v_it_1 v_main_~i~0_9 1)) (< (+ (* v_main_~i~0_9 v_main_~i~0_9) (* 2 (* v_it_1 v_main_~i~0_9)) (* v_it_1 v_it_1)) 100))) (< v_main_~i~0_9 v_main_~i~0_BEFORE_CALL_1) (< (* v_main_~i~0_9 v_main_~i~0_9) 100) (< v_main_~i~0_9 10) (< 0 (+ v_main_~i~0_9 10)) (<= 100 (* v_main_~i~0_BEFORE_CALL_1 v_main_~i~0_BEFORE_CALL_1)) (not (= v_main_~i~0_BEFORE_CALL_1 10)))) is different from false [2021-05-02 19:10:27,042 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_main_~i~0_9 Int) (v_main_~i~0_BEFORE_CALL_1 Int)) (and (forall ((v_it_1 Int)) (or (< v_it_1 1) (< v_main_~i~0_BEFORE_CALL_1 (+ v_it_1 v_main_~i~0_9 1)) (< (+ (* v_main_~i~0_9 v_main_~i~0_9) (* 2 (* v_it_1 v_main_~i~0_9)) (* v_it_1 v_it_1)) 100))) (< v_main_~i~0_9 v_main_~i~0_BEFORE_CALL_1) (< (* v_main_~i~0_9 v_main_~i~0_9) 100) (< v_main_~i~0_9 10) (< 0 (+ v_main_~i~0_9 10)) (<= 100 (* v_main_~i~0_BEFORE_CALL_1 v_main_~i~0_BEFORE_CALL_1)) (not (= v_main_~i~0_BEFORE_CALL_1 10)))) is different from true [2021-05-02 19:10:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 19:10:27,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:10:27,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865291571] [2021-05-02 19:10:27,043 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 19:10:27,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133243111] [2021-05-02 19:10:27,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133243111] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:10:27,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 19:10:27,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-05-02 19:10:27,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105570222] [2021-05-02 19:10:27,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-02 19:10:27,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:10:27,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-02 19:10:27,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=21, Unknown=2, NotChecked=8, Total=42 [2021-05-02 19:10:27,045 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:10:46,994 WARN L205 SmtUtils]: Spent 19.71 s on a formula simplification that was a NOOP. DAG size: 41 [2021-05-02 19:10:49,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:10:49,003 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-05-02 19:10:49,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-02 19:10:49,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 2 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 13 [2021-05-02 19:10:49,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:10:49,005 INFO L225 Difference]: With dead ends: 13 [2021-05-02 19:10:49,005 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 19:10:49,006 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43723.8ms TimeCoverageRelationStatistics Valid=15, Invalid=29, Unknown=2, NotChecked=10, Total=56 [2021-05-02 19:10:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 19:10:49,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 19:10:49,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-02 19:10:49,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 19:10:49,006 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-05-02 19:10:49,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:10:49,006 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 19:10:49,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:10:49,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 19:10:49,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 19:10:49,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 19:10:49,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 07:10:49 BasicIcfg [2021-05-02 19:10:49,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 19:10:49,211 INFO L168 Benchmark]: Toolchain (without parser) took 54424.59 ms. Allocated memory was 199.2 MB in the beginning and 252.7 MB in the end (delta: 53.5 MB). Free memory was 165.5 MB in the beginning and 166.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 8.0 GB. [2021-05-02 19:10:49,211 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 199.2 MB. Free memory is still 181.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 19:10:49,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.49 ms. Allocated memory is still 199.2 MB. Free memory was 165.3 MB in the beginning and 183.7 MB in the end (delta: -18.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. [2021-05-02 19:10:49,212 INFO L168 Benchmark]: Boogie Preprocessor took 38.93 ms. Allocated memory is still 199.2 MB. Free memory was 183.7 MB in the beginning and 182.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-02 19:10:49,212 INFO L168 Benchmark]: RCFGBuilder took 286.21 ms. Allocated memory is still 199.2 MB. Free memory was 182.0 MB in the beginning and 169.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-05-02 19:10:49,212 INFO L168 Benchmark]: IcfgTransformer took 341.85 ms. Allocated memory is still 199.2 MB. Free memory was 169.0 MB in the beginning and 156.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-05-02 19:10:49,212 INFO L168 Benchmark]: TraceAbstraction took 53522.60 ms. Allocated memory was 199.2 MB in the beginning and 252.7 MB in the end (delta: 53.5 MB). Free memory was 156.2 MB in the beginning and 166.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 43.5 MB. Max. memory is 8.0 GB. [2021-05-02 19:10:49,212 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, 0 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 199.2 MB. Free memory is still 181.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 229.49 ms. Allocated memory is still 199.2 MB. Free memory was 165.3 MB in the beginning and 183.7 MB in the end (delta: -18.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.93 ms. Allocated memory is still 199.2 MB. Free memory was 183.7 MB in the beginning and 182.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 286.21 ms. Allocated memory is still 199.2 MB. Free memory was 182.0 MB in the beginning and 169.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 341.85 ms. Allocated memory is still 199.2 MB. Free memory was 169.0 MB in the beginning and 156.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 53522.60 ms. Allocated memory was 199.2 MB in the beginning and 252.7 MB in the end (delta: 53.5 MB). Free memory was 156.2 MB in the beginning and 166.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 43.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 53466.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 12.3ms, AutomataDifference: 22024.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 38 SDtfs, 13 SDslu, 39 SDs, 0 SdLazy, 27 SolverSat, 3 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2065.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43773.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: 13.6ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.1ms SsaConstructionTime, 197.6ms SatisfiabilityAnalysisTime, 30594.7ms InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 5 QuantifiedInterpolants, 339 SizeOfPredicates, 5 NumberOfNonLiveVariables, 151 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...