/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-invariants/eq2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 04:27:14,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 04:27:14,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 04:27:14,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 04:27:14,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 04:27:14,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 04:27:14,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 04:27:14,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 04:27:15,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 04:27:15,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 04:27:15,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 04:27:15,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 04:27:15,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 04:27:15,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 04:27:15,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 04:27:15,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 04:27:15,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 04:27:15,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 04:27:15,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 04:27:15,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 04:27:15,011 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 04:27:15,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 04:27:15,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 04:27:15,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 04:27:15,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 04:27:15,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 04:27:15,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 04:27:15,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 04:27:15,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 04:27:15,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 04:27:15,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 04:27:15,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 04:27:15,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 04:27:15,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 04:27:15,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 04:27:15,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 04:27:15,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 04:27:15,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 04:27:15,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 04:27:15,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 04:27:15,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 04:27:15,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 04:27:15,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 04:27:15,038 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 04:27:15,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 04:27:15,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 04:27:15,039 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 04:27:15,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 04:27:15,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 04:27:15,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 04:27:15,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 04:27:15,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 04:27:15,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 04:27:15,040 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 04:27:15,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 04:27:15,040 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 04:27:15,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 04:27:15,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 04:27:15,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 04:27:15,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 04:27:15,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 04:27:15,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 04:27:15,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 04:27:15,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 04:27:15,042 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 04:27:15,042 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 04:27:15,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 04:27:15,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 04:27:15,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 04:27:15,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 04:27:15,236 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 04:27:15,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq2.c [2022-03-20 04:27:15,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439e31de5/548b1c637325493c9c91f6a974bf7aa1/FLAG927fd4208 [2022-03-20 04:27:15,597 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 04:27:15,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c [2022-03-20 04:27:15,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439e31de5/548b1c637325493c9c91f6a974bf7aa1/FLAG927fd4208 [2022-03-20 04:27:16,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439e31de5/548b1c637325493c9c91f6a974bf7aa1 [2022-03-20 04:27:16,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 04:27:16,043 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 04:27:16,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 04:27:16,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 04:27:16,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 04:27:16,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbaddc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16, skipping insertion in model container [2022-03-20 04:27:16,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 04:27:16,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 04:27:16,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c[364,377] [2022-03-20 04:27:16,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 04:27:16,189 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 04:27:16,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c[364,377] [2022-03-20 04:27:16,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 04:27:16,207 INFO L208 MainTranslator]: Completed translation [2022-03-20 04:27:16,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16 WrapperNode [2022-03-20 04:27:16,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 04:27:16,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 04:27:16,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 04:27:16,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 04:27:16,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 04:27:16,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 04:27:16,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 04:27:16,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 04:27:16,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 04:27:16,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 04:27:16,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 04:27:16,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 04:27:16,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 04:27:16,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 04:27:16,291 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 04:27:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 04:27:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 04:27:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 04:27:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 04:27:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 04:27:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 04:27:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-03-20 04:27:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 04:27:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 04:27:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 04:27:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 04:27:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 04:27:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 04:27:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 04:27:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 04:27:16,340 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 04:27:16,341 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 04:27:16,412 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 04:27:16,416 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 04:27:16,417 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 04:27:16,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:27:16 BoogieIcfgContainer [2022-03-20 04:27:16,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 04:27:16,419 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 04:27:16,419 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 04:27:16,420 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 04:27:16,422 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:27:16" (1/1) ... [2022-03-20 04:27:16,423 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 04:27:16,575 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 3 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 04:27:16,576 INFO L91 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~z~0_3 1) v_main_~z~0_2) (= v_main_~y~0_2 (+ v_main_~y~0_3 1)) (not (= (mod |v_main_#t~nondet5_4| 4294967296) 0))) InVars {main_#t~nondet5=|v_main_#t~nondet5_4|, main_~z~0=v_main_~z~0_3, main_~y~0=v_main_~y~0_3} OutVars{main_#t~nondet5=|v_main_#t~nondet5_3|, main_~z~0=v_main_~z~0_2, main_~y~0=v_main_~y~0_2, main_#t~post6=|v_main_#t~post6_1|, main_#t~post7=|v_main_#t~post7_1|} AuxVars[] AssignedVars[main_#t~nondet5, main_~z~0, main_~y~0, main_#t~post6, main_#t~post7] to Formula: (let ((.cse0 (= (mod |v_main_#t~nondet5_4| 4294967296) 0))) (or (and (= v_main_~z~0_3 v_main_~z~0_2) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) (= v_main_~y~0_3 v_main_~y~0_2) .cse0 (= |v_main_#t~nondet5_4| |v_main_#t~nondet5_3|) (= |v_main_#t~post7_3| |v_main_#t~post7_1|)) (and (= v_main_~y~0_2 (+ (* (- 1) v_main_~z~0_3) v_main_~y~0_3 v_main_~z~0_2)) (< v_main_~z~0_3 v_main_~z~0_2) (not .cse0)))) InVars {main_#t~nondet5=|v_main_#t~nondet5_4|, main_~y~0=v_main_~y~0_3, main_~z~0=v_main_~z~0_3, main_#t~post6=|v_main_#t~post6_3|, main_#t~post7=|v_main_#t~post7_3|} OutVars{main_#t~nondet5=|v_main_#t~nondet5_3|, main_~y~0=v_main_~y~0_2, main_~z~0=v_main_~z~0_2, main_#t~post6=|v_main_#t~post6_1|, main_#t~post7=|v_main_#t~post7_1|} AuxVars[] AssignedVars[main_#t~nondet5, main_~z~0, main_~y~0, main_#t~post6, main_#t~post7] [2022-03-20 04:27:16,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 04:27:16 BasicIcfg [2022-03-20 04:27:16,588 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 04:27:16,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 04:27:16,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 04:27:16,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 04:27:16,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 04:27:16" (1/4) ... [2022-03-20 04:27:16,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5233be9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 04:27:16, skipping insertion in model container [2022-03-20 04:27:16,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:27:16" (2/4) ... [2022-03-20 04:27:16,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5233be9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 04:27:16, skipping insertion in model container [2022-03-20 04:27:16,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:27:16" (3/4) ... [2022-03-20 04:27:16,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5233be9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 04:27:16, skipping insertion in model container [2022-03-20 04:27:16,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 04:27:16" (4/4) ... [2022-03-20 04:27:16,597 INFO L111 eAbstractionObserver]: Analyzing ICFG eq2.cJordan [2022-03-20 04:27:16,601 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 04:27:16,601 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 04:27:16,639 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 04:27:16,649 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 04:27:16,650 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 04:27:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 04:27:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-20 04:27:16,667 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:27:16,668 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:27:16,668 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:27:16,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:27:16,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1088827777, now seen corresponding path program 1 times [2022-03-20 04:27:16,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:27:16,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820231748] [2022-03-20 04:27:16,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:27:16,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:27:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:27:16,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:27:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:27:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:27:16,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:27:16,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820231748] [2022-03-20 04:27:16,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820231748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 04:27:16,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 04:27:16,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 04:27:16,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050565960] [2022-03-20 04:27:16,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 04:27:16,852 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 04:27:16,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:27:16,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 04:27:16,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 04:27:16,882 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:27:16,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:27:16,919 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-03-20 04:27:16,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 04:27:16,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-20 04:27:16,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:27:16,926 INFO L225 Difference]: With dead ends: 19 [2022-03-20 04:27:16,927 INFO L226 Difference]: Without dead ends: 12 [2022-03-20 04:27:16,928 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 04:27:16,933 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:27:16,934 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 04:27:16,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-03-20 04:27:16,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-03-20 04:27:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:27:16,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-03-20 04:27:16,960 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2022-03-20 04:27:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:27:16,960 INFO L478 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-03-20 04:27:16,960 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:27:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-03-20 04:27:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-20 04:27:16,961 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:27:16,961 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:27:16,961 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 04:27:16,962 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:27:16,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:27:16,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1087904256, now seen corresponding path program 1 times [2022-03-20 04:27:16,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:27:16,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133602052] [2022-03-20 04:27:16,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:27:16,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:27:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:27:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:27:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:27:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:27:17,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:27:17,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133602052] [2022-03-20 04:27:17,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133602052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 04:27:17,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 04:27:17,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 04:27:17,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752247690] [2022-03-20 04:27:17,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 04:27:17,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 04:27:17,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:27:17,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 04:27:17,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 04:27:17,150 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:27:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:27:17,216 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-03-20 04:27:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 04:27:17,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-20 04:27:17,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:27:17,217 INFO L225 Difference]: With dead ends: 10 [2022-03-20 04:27:17,217 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 04:27:17,217 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 04:27:17,218 INFO L913 BasicCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:27:17,219 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 25 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 04:27:17,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 04:27:17,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 04:27:17,225 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) [2022-03-20 04:27:17,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 04:27:17,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-03-20 04:27:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:27:17,226 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 04:27:17,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:27:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 04:27:17,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 04:27:17,236 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 04:27:17,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 04:27:17,238 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-20 04:27:17,239 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 04:27:17,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 04:27:17 BasicIcfg [2022-03-20 04:27:17,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 04:27:17,241 INFO L158 Benchmark]: Toolchain (without parser) took 1198.14ms. Allocated memory is still 192.9MB. Free memory was 143.5MB in the beginning and 116.4MB in the end (delta: 27.1MB). Peak memory consumption was 26.0MB. Max. memory is 8.0GB. [2022-03-20 04:27:17,242 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory was 159.6MB in the beginning and 159.4MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 04:27:17,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.88ms. Allocated memory is still 192.9MB. Free memory was 143.4MB in the beginning and 170.7MB in the end (delta: -27.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-20 04:27:17,242 INFO L158 Benchmark]: Boogie Preprocessor took 18.29ms. Allocated memory is still 192.9MB. Free memory was 170.7MB in the beginning and 169.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-20 04:27:17,243 INFO L158 Benchmark]: RCFGBuilder took 190.81ms. Allocated memory is still 192.9MB. Free memory was 169.3MB in the beginning and 159.4MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-20 04:27:17,243 INFO L158 Benchmark]: IcfgTransformer took 168.97ms. Allocated memory is still 192.9MB. Free memory was 159.4MB in the beginning and 152.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-20 04:27:17,243 INFO L158 Benchmark]: TraceAbstraction took 652.19ms. Allocated memory is still 192.9MB. Free memory was 151.5MB in the beginning and 116.4MB in the end (delta: 35.0MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2022-03-20 04:27:17,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 3 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory was 159.6MB in the beginning and 159.4MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 163.88ms. Allocated memory is still 192.9MB. Free memory was 143.4MB in the beginning and 170.7MB in the end (delta: -27.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.29ms. Allocated memory is still 192.9MB. Free memory was 170.7MB in the beginning and 169.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 190.81ms. Allocated memory is still 192.9MB. Free memory was 169.3MB in the beginning and 159.4MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 168.97ms. Allocated memory is still 192.9MB. Free memory was 159.4MB in the beginning and 152.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 652.19ms. Allocated memory is still 192.9MB. Free memory was 151.5MB in the beginning and 116.4MB in the end (delta: 35.0MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 26 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-20 04:27:17,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...