/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 03:20:23,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 03:20:23,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 03:20:23,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 03:20:23,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 03:20:23,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 03:20:23,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 03:20:23,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 03:20:23,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 03:20:23,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 03:20:23,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 03:20:23,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 03:20:23,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 03:20:23,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 03:20:23,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 03:20:23,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 03:20:23,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 03:20:23,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 03:20:23,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 03:20:23,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 03:20:23,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 03:20:23,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 03:20:23,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 03:20:23,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 03:20:23,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 03:20:23,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 03:20:23,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 03:20:23,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 03:20:23,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 03:20:23,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 03:20:23,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 03:20:23,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 03:20:23,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 03:20:23,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 03:20:23,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 03:20:23,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 03:20:23,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 03:20:23,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 03:20:23,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 03:20:23,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 03:20:23,521 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 03:20:23,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 03:20:23,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 03:20:23,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 03:20:23,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 03:20:23,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 03:20:23,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 03:20:23,522 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 03:20:23,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 03:20:23,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 03:20:23,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 03:20:23,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 03:20:23,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 03:20:23,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 03:20:23,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 03:20:23,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:20:23,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 03:20:23,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 03:20:23,524 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 03:20:23,524 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 03:20:23,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 03:20:23,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 03:20:23,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 03:20:23,794 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 03:20:23,794 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 03:20:23,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2021-05-01 03:20:23,843 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a56082b/428d15f935594a899c167779df0bd694/FLAG238b28cb9 [2021-05-01 03:20:24,239 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 03:20:24,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2021-05-01 03:20:24,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a56082b/428d15f935594a899c167779df0bd694/FLAG238b28cb9 [2021-05-01 03:20:24,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a56082b/428d15f935594a899c167779df0bd694 [2021-05-01 03:20:24,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 03:20:24,262 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 03:20:24,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 03:20:24,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 03:20:24,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 03:20:24,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@acbf549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24, skipping insertion in model container [2021-05-01 03:20:24,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 03:20:24,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 03:20:24,405 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-lit/cggmp2005_variant.i[895,908] [2021-05-01 03:20:24,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:20:24,421 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 03:20:24,430 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-lit/cggmp2005_variant.i[895,908] [2021-05-01 03:20:24,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:20:24,445 INFO L208 MainTranslator]: Completed translation [2021-05-01 03:20:24,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24 WrapperNode [2021-05-01 03:20:24,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 03:20:24,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 03:20:24,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 03:20:24,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 03:20:24,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 03:20:24,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 03:20:24,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 03:20:24,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 03:20:24,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:20:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 03:20:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 03:20:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 03:20:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 03:20:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 03:20:24,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 03:20:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 03:20:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 03:20:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 03:20:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 03:20:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 03:20:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 03:20:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 03:20:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 03:20:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 03:20:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 03:20:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 03:20:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 03:20:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 03:20:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 03:20:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 03:20:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 03:20:24,711 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 03:20:24,711 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 03:20:24,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:20:24 BoogieIcfgContainer [2021-05-01 03:20:24,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 03:20:24,713 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 03:20:24,713 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 03:20:24,713 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 03:20:24,715 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:20:24" (1/1) ... [2021-05-01 03:20:24,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:24,774 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_5) InVars {main_~mid~0=v_main_~mid~0_5} OutVars{main_~mid~0=v_main_~mid~0_5} AuxVars[] AssignedVars[] [2021-05-01 03:20:24,813 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.3 percent of original size [2021-05-01 03:20:24,839 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,843 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,846 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,854 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,860 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,872 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,876 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,882 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,885 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 03:20:24,896 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 03:20:24,898 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,906 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,914 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:24,916 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.3 percent of original size 55 [2021-05-01 03:20:24,945 INFO L1111 elerationTransformer]: Accelerated Formula: (and (= v_main_~hi~0_3 (+ v_main_~hi~0_4 (- 1))) (= v_main_~mid~0_4 (+ v_main_~mid~0_5 (- 1))) (= v_main_~lo~0_2 (+ v_main_~lo~0_3 1)) (< 0 v_main_~mid~0_5)) InVars {main_~lo~0=v_main_~lo~0_3, main_~mid~0=v_main_~mid~0_5, main_~hi~0=v_main_~hi~0_4} OutVars{main_~lo~0=v_main_~lo~0_2, main_~mid~0=v_main_~mid~0_4, main_~hi~0=v_main_~hi~0_3} AuxVars[] AssignedVars[main_~lo~0, main_~mid~0, main_~hi~0] with Formula: (or (and (= (+ v_itFin_1 v_main_~mid~0_4) v_main_~mid~0_5) (<= v_main_~mid~0_5 v_itFin_1) (= v_main_~lo~0_2 (+ v_itFin_1 v_main_~lo~0_3)) (< v_itFin_1 (+ v_main_~mid~0_5 1)) (= v_main_~hi~0_4 (+ v_itFin_1 v_main_~hi~0_3)) (< 0 v_main_~mid~0_5)) (and (= v_itFin_1 0) (<= v_main_~mid~0_5 0) (= v_main_~lo~0_3 v_main_~lo~0_2) (= v_main_~mid~0_5 v_main_~mid~0_4) (= v_main_~hi~0_4 v_main_~hi~0_3))) InVars {main_~lo~0=v_main_~lo~0_3, main_~mid~0=v_main_~mid~0_5, main_~hi~0=v_main_~hi~0_4} OutVars{main_~lo~0=v_main_~lo~0_2, main_~mid~0=v_main_~mid~0_4, main_~hi~0=v_main_~hi~0_3} AuxVars[v_itFin_1] AssignedVars[main_~lo~0, main_~mid~0, main_~hi~0] [2021-05-01 03:20:24,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:20:24 BasicIcfg [2021-05-01 03:20:24,955 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 03:20:24,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 03:20:24,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 03:20:24,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 03:20:24,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 03:20:24" (1/4) ... [2021-05-01 03:20:24,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c1953c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:20:24, skipping insertion in model container [2021-05-01 03:20:24,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:24" (2/4) ... [2021-05-01 03:20:24,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c1953c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:20:24, skipping insertion in model container [2021-05-01 03:20:24,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:20:24" (3/4) ... [2021-05-01 03:20:24,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c1953c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:20:24, skipping insertion in model container [2021-05-01 03:20:24,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:20:24" (4/4) ... [2021-05-01 03:20:24,963 INFO L111 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.iJordan [2021-05-01 03:20:24,966 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 03:20:24,970 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 03:20:24,982 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 03:20:25,003 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 03:20:25,003 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 03:20:25,003 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 03:20:25,003 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 03:20:25,004 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 03:20:25,004 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 03:20:25,004 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 03:20:25,004 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 03:20:25,014 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) [2021-05-01 03:20:25,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 03:20:25,019 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:20:25,019 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:20:25,020 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:20:25,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:20:25,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1291699483, now seen corresponding path program 1 times [2021-05-01 03:20:25,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:20:25,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110186147] [2021-05-01 03:20:25,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:20:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:25,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:20:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:25,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 03:20:25,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:20:25,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110186147] [2021-05-01 03:20:25,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110186147] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:20:25,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:20:25,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 03:20:25,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888389978] [2021-05-01 03:20:25,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 03:20:25,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:20:25,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 03:20:25,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 03:20:25,209 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) [2021-05-01 03:20:25,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:20:25,238 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-05-01 03:20:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 03:20:25,240 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 [2021-05-01 03:20:25,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:20:25,244 INFO L225 Difference]: With dead ends: 20 [2021-05-01 03:20:25,244 INFO L226 Difference]: Without dead ends: 13 [2021-05-01 03:20:25,245 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 03:20:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-01 03:20:25,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-01 03:20:25,276 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) [2021-05-01 03:20:25,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-01 03:20:25,278 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2021-05-01 03:20:25,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:20:25,278 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-01 03:20:25,278 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) [2021-05-01 03:20:25,279 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-01 03:20:25,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 03:20:25,280 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:20:25,280 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:20:25,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 03:20:25,281 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:20:25,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:20:25,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1292623004, now seen corresponding path program 1 times [2021-05-01 03:20:25,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:20:25,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198234864] [2021-05-01 03:20:25,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:20:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:25,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:20:25,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:20:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:25,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 03:20:25,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:20:25,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198234864] [2021-05-01 03:20:25,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198234864] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:20:25,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:20:25,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 03:20:25,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190195006] [2021-05-01 03:20:25,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 03:20:25,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:20:25,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 03:20:25,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 03:20:25,378 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2021-05-01 03:20:25,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:20:25,426 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-05-01 03:20:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 03:20:25,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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 [2021-05-01 03:20:25,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:20:25,427 INFO L225 Difference]: With dead ends: 14 [2021-05-01 03:20:25,427 INFO L226 Difference]: Without dead ends: 14 [2021-05-01 03:20:25,428 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 03:20:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-05-01 03:20:25,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-05-01 03:20:25,431 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) [2021-05-01 03:20:25,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-01 03:20:25,433 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-05-01 03:20:25,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:20:25,433 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-01 03:20:25,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2021-05-01 03:20:25,433 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-01 03:20:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-01 03:20:25,434 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:20:25,434 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:20:25,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 03:20:25,434 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:20:25,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:20:25,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1443329038, now seen corresponding path program 1 times [2021-05-01 03:20:25,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:20:25,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686041782] [2021-05-01 03:20:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:20:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:25,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:25,504 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 03:20:25,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:20:25,517 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 03:20:25,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 03:20:25,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:20:25,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:20:25,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:20:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:25,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 03:20:25,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:20:25,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686041782] [2021-05-01 03:20:25,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686041782] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 03:20:25,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750102794] [2021-05-01 03:20:25,584 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 [2021-05-01 03:20:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:25,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-01 03:20:25,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-01 03:20:25,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:25,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:25,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:25,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:25,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:25,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 03:20:25,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 03:20:25,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 03:20:25,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 03:20:25,690 INFO L142 QuantifierPusher]: treesize reduction 21, result has 66.1 percent of original size [2021-05-01 03:20:25,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-05-01 03:20:25,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-05-01 03:20:25,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-01 03:20:25,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,703 INFO L147 QuantifierPusher]: treesize reduction -5, result has 111.1 percent of original size 50 [2021-05-01 03:20:25,704 INFO L142 QuantifierPusher]: treesize reduction -5, result has 111.1 percent of original size [2021-05-01 03:20:25,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 03:20:25,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 03:20:25,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 03:20:25,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 03:20:25,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 03:20:25,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,782 INFO L142 QuantifierPusher]: treesize reduction 11, result has 87.1 percent of original size [2021-05-01 03:20:25,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 03:20:25,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-05-01 03:20:25,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 03:20:25,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-05-01 03:20:25,808 INFO L142 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-05-01 03:20:25,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,830 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-05-01 03:20:25,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,832 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-05-01 03:20:25,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,838 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-05-01 03:20:25,839 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-05-01 03:20:25,842 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,853 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.2 percent of original size 91 [2021-05-01 03:20:25,861 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.2 percent of original size 91 [2021-05-01 03:20:25,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,902 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-05-01 03:20:25,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,910 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.7 percent of original size 25 [2021-05-01 03:20:25,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,912 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.0 percent of original size [2021-05-01 03:20:25,913 INFO L147 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size 13 [2021-05-01 03:20:25,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,916 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-05-01 03:20:25,918 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:25,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:25,981 INFO L849 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-05-01 03:20:26,034 INFO L849 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-05-01 03:20:26,063 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-05-01 03:20:26,067 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:26,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:26,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:26,106 INFO L849 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-05-01 03:20:26,209 INFO L849 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-05-01 03:20:26,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:26,348 INFO L142 QuantifierPusher]: treesize reduction 164, result has 83.9 percent of original size [2021-05-01 03:20:26,396 INFO L147 QuantifierPusher]: treesize reduction 895, result has 86.5 percent of original size 5723 [2021-05-01 03:20:26,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:26,428 INFO L142 QuantifierPusher]: treesize reduction 567, result has 88.6 percent of original size [2021-05-01 03:20:26,899 INFO L849 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-05-01 03:20:27,817 INFO L849 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-05-01 03:20:42,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:42,603 INFO L142 QuantifierPusher]: treesize reduction -38, result has 101.0 percent of original size [2021-05-01 03:20:48,511 WARN L205 SmtUtils]: Spent 5.82 s on a formula simplification. DAG size of input: 6052 DAG size of output: 5920 [2021-05-01 03:20:48,632 INFO L147 QuantifierPusher]: treesize reduction -10450, result has 104.5 percent of original size 244023 [2021-05-01 03:20:48,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:48,874 INFO L142 QuantifierPusher]: treesize reduction -212, result has 102.7 percent of original size [2021-05-01 03:21:59,725 WARN L205 SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 17496 DAG size of output: 5775 [2021-05-01 03:21:59,842 INFO L147 QuantifierPusher]: treesize reduction 576113, result has 29.4 percent of original size 239889 [2021-05-01 03:22:00,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:22:00,355 INFO L142 QuantifierPusher]: treesize reduction 3632, result has 68.9 percent of original size [2021-05-01 03:23:08,283 WARN L205 SmtUtils]: Spent 1.13 m on a formula simplification. DAG size of input: 17401 DAG size of output: 5723 [2021-05-01 03:23:08,398 INFO L147 QuantifierPusher]: treesize reduction 574114, result has 29.3 percent of original size 237744 [2021-05-01 03:23:08,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:23:08,924 INFO L142 QuantifierPusher]: treesize reduction 3632, result has 68.9 percent of original size [2021-05-01 03:24:16,439 WARN L205 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 17301 DAG size of output: 5667 [2021-05-01 03:24:16,559 INFO L147 QuantifierPusher]: treesize reduction 572389, result has 29.2 percent of original size 235907 [2021-05-01 03:24:17,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:24:17,115 INFO L142 QuantifierPusher]: treesize reduction 3632, result has 68.9 percent of original size [2021-05-01 03:25:46,970 WARN L205 SmtUtils]: Spent 1.49 m on a formula simplification. DAG size of input: 17197 DAG size of output: 5607 [2021-05-01 03:25:47,092 INFO L147 QuantifierPusher]: treesize reduction 570490, result has 29.1 percent of original size 233807 [2021-05-01 03:25:47,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:25:47,682 INFO L142 QuantifierPusher]: treesize reduction 3632, result has 68.9 percent of original size [2021-05-01 03:27:11,931 WARN L205 SmtUtils]: Spent 1.40 m on a formula simplification. DAG size of input: 17042 DAG size of output: 5516 [2021-05-01 03:27:12,050 INFO L147 QuantifierPusher]: treesize reduction 568420, result has 28.9 percent of original size 231466 [2021-05-01 03:27:12,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:27:12,623 INFO L142 QuantifierPusher]: treesize reduction 3632, result has 68.9 percent of original size [2021-05-01 03:28:21,772 WARN L205 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 16938 DAG size of output: 5456 [2021-05-01 03:28:21,885 INFO L147 QuantifierPusher]: treesize reduction 566803, result has 28.8 percent of original size 229620 [2021-05-01 03:28:22,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:28:22,362 INFO L142 QuantifierPusher]: treesize reduction 3632, result has 68.9 percent of original size [2021-05-01 03:29:24,456 WARN L205 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 16829 DAG size of output: 5391 [2021-05-01 03:29:24,570 INFO L147 QuantifierPusher]: treesize reduction 565052, result has 28.7 percent of original size 227568 [2021-05-01 03:29:24,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:29:25,087 INFO L142 QuantifierPusher]: treesize reduction 15728, result has 37.5 percent of original size [2021-05-01 03:30:36,621 WARN L205 SmtUtils]: Spent 1.19 m on a formula simplification. DAG size of input: 19405 DAG size of output: 18651 [2021-05-01 03:30:37,112 INFO L147 QuantifierPusher]: treesize reduction -13579, result has 101.4 percent of original size 1013423 [2021-05-01 03:30:37,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:30:38,116 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 2298 DAG size of output: 1571 [2021-05-01 03:30:38,131 INFO L142 QuantifierPusher]: treesize reduction 15269, result has 63.9 percent of original size