/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.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 03:20:18,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 03:20:18,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 03:20:18,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 03:20:18,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 03:20:18,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 03:20:18,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 03:20:18,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 03:20:18,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 03:20:18,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 03:20:18,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 03:20:18,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 03:20:18,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 03:20:18,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 03:20:18,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 03:20:18,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 03:20:18,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 03:20:18,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 03:20:18,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 03:20:18,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 03:20:18,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 03:20:18,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 03:20:18,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 03:20:18,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 03:20:18,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-01 03:20:18,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-01 03:20:18,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-01 03:20:18,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-01 03:20:18,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-01 03:20:18,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-01 03:20:18,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 03:20:18,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 03:20:18,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 03:20:18,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 03:20:18,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 03:20:18,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 03:20:18,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 03:20:18,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 03:20:18,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 03:20:18,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 03:20:18,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 03:20:18,220 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 03:20:18,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 03:20:18,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 03:20:18,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 03:20:18,234 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 03:20:18,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 03:20:18,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 03:20:18,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 03:20:18,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 03:20:18,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 03:20:18,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 03:20:18,235 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 03:20:18,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 03:20:18,236 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 03:20:18,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 03:20:18,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 03:20:18,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 03:20:18,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 03:20:18,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 03:20:18,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:20:18,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 03:20:18,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 03:20:18,237 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 03:20:18,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 03:20:18,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 03:20:18,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 03:20:18,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 03:20:18,509 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 03:20:18,510 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 03:20:18,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005.i [2021-05-01 03:20:18,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b2881d5/1708a8d2f5934b9eb7aa67b5d3e36f44/FLAG7da8d11ca [2021-05-01 03:20:18,946 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 03:20:18,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005.i [2021-05-01 03:20:18,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b2881d5/1708a8d2f5934b9eb7aa67b5d3e36f44/FLAG7da8d11ca [2021-05-01 03:20:18,966 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b2881d5/1708a8d2f5934b9eb7aa67b5d3e36f44 [2021-05-01 03:20:18,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 03:20:18,969 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 03:20:18,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 03:20:18,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 03:20:18,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 03:20:18,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:20:18" (1/1) ... [2021-05-01 03:20:18,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d59275f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:18, skipping insertion in model container [2021-05-01 03:20:18,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:20:18" (1/1) ... [2021-05-01 03:20:18,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 03:20:18,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 03:20:19,102 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.i[895,908] [2021-05-01 03:20:19,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:20:19,119 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 03:20:19,127 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.i[895,908] [2021-05-01 03:20:19,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:20:19,136 INFO L208 MainTranslator]: Completed translation [2021-05-01 03:20:19,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19 WrapperNode [2021-05-01 03:20:19,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 03:20:19,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 03:20:19,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 03:20:19,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 03:20:19,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19" (1/1) ... [2021-05-01 03:20:19,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19" (1/1) ... [2021-05-01 03:20:19,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19" (1/1) ... [2021-05-01 03:20:19,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19" (1/1) ... [2021-05-01 03:20:19,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19" (1/1) ... [2021-05-01 03:20:19,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19" (1/1) ... [2021-05-01 03:20:19,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19" (1/1) ... [2021-05-01 03:20:19,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 03:20:19,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 03:20:19,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 03:20:19,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 03:20:19,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19" (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 03:20:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 03:20:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 03:20:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 03:20:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 03:20:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 03:20:19,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 03:20:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 03:20:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 03:20:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 03:20:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 03:20:19,240 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 03:20:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 03:20:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 03:20:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 03:20:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 03:20:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 03:20:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 03:20:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 03:20:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 03:20:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 03:20:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 03:20:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 03:20:19,411 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 03:20:19,412 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 03:20:19,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:20:19 BoogieIcfgContainer [2021-05-01 03:20:19,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 03:20:19,413 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 03:20:19,413 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 03:20:19,414 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 03:20:19,415 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:20:19" (1/1) ... [2021-05-01 03:20:19,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:19,487 INFO L181 rdanLoopAcceleration]: Guard: Formula: (<= v_main_~i~0_3 v_main_~j~0_3) InVars {main_~i~0=v_main_~i~0_3, main_~j~0=v_main_~j~0_3} OutVars{main_~i~0=v_main_~i~0_3, main_~j~0=v_main_~j~0_3} AuxVars[] AssignedVars[] [2021-05-01 03:20:19,502 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 90.5 percent of original size [2021-05-01 03:20:19,512 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,515 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,517 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,519 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,524 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,527 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,530 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 03:20:19,533 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,536 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,547 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 03:20:19,549 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,552 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 90.5 percent of original size 57 [2021-05-01 03:20:19,571 INFO L1111 elerationTransformer]: Accelerated Formula: (and (<= v_main_~i~0_3 v_main_~j~0_3) (= v_main_~i~0_2 (+ v_main_~i~0_3 2)) (= v_main_~j~0_2 (+ v_main_~j~0_3 (- 1)))) InVars {main_~j~0=v_main_~j~0_3, main_~i~0=v_main_~i~0_3} OutVars{main_~j~0=v_main_~j~0_2, main_~i~0=v_main_~i~0_2} AuxVars[] AssignedVars[main_~j~0, main_~i~0] with Formula: (or (and (= v_itFin_1 0) (< v_main_~j~0_3 v_main_~i~0_3) (= v_main_~i~0_3 v_main_~i~0_2) (= v_main_~j~0_3 v_main_~j~0_2)) (and (<= v_main_~i~0_3 v_main_~j~0_3) (= v_main_~i~0_2 (+ (* 2 v_itFin_1) v_main_~i~0_3)) (< v_main_~j~0_3 (+ (* 3 v_itFin_1) v_main_~i~0_3)) (= v_main_~j~0_3 (+ v_itFin_1 v_main_~j~0_2)) (<= v_itFin_1 (+ (div (+ v_main_~j~0_3 (* v_main_~i~0_3 (- 1))) 3) 1)))) InVars {main_~i~0=v_main_~i~0_3, main_~j~0=v_main_~j~0_3} OutVars{main_~i~0=v_main_~i~0_2, main_~j~0=v_main_~j~0_2} AuxVars[v_itFin_1] AssignedVars[main_~j~0, main_~i~0] [2021-05-01 03:20:19,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:20:19 BasicIcfg [2021-05-01 03:20:19,577 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 03:20:19,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 03:20:19,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 03:20:19,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 03:20:19,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 03:20:18" (1/4) ... [2021-05-01 03:20:19,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1517194a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:20:19, skipping insertion in model container [2021-05-01 03:20:19,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:20:19" (2/4) ... [2021-05-01 03:20:19,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1517194a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:20:19, skipping insertion in model container [2021-05-01 03:20:19,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:20:19" (3/4) ... [2021-05-01 03:20:19,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1517194a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:20:19, skipping insertion in model container [2021-05-01 03:20:19,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:20:19" (4/4) ... [2021-05-01 03:20:19,582 INFO L111 eAbstractionObserver]: Analyzing ICFG cggmp2005.iJordan [2021-05-01 03:20:19,585 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 03:20:19,588 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 03:20:19,599 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 03:20:19,609 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 03:20:19,609 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 03:20:19,609 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 03:20:19,609 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 03:20:19,609 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 03:20:19,609 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 03:20:19,610 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 03:20:19,610 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 03:20:19,618 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) [2021-05-01 03:20:19,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-01 03:20:19,622 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:20:19,622 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:20:19,623 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:20:19,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:20:19,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1257757292, now seen corresponding path program 1 times [2021-05-01 03:20:19,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:20:19,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626965570] [2021-05-01 03:20:19,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:20:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:19,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:19,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:19,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:20:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:19,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:19,737 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 03:20:19,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:20:19,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626965570] [2021-05-01 03:20:19,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626965570] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:20:19,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:20:19,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 03:20:19,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611045288] [2021-05-01 03:20:19,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 03:20:19,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:20:19,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 03:20:19,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 03:20:19,751 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) [2021-05-01 03:20:19,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:20:19,777 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-05-01 03:20:19,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 03:20:19,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-05-01 03:20:19,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:20:19,782 INFO L225 Difference]: With dead ends: 19 [2021-05-01 03:20:19,783 INFO L226 Difference]: Without dead ends: 12 [2021-05-01 03:20:19,783 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 03:20:19,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-05-01 03:20:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-05-01 03:20:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:20:19,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-05-01 03:20:19,803 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2021-05-01 03:20:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:20:19,803 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-05-01 03:20:19,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:20:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-05-01 03:20:19,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-01 03:20:19,804 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:20:19,804 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:20:19,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 03:20:19,804 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:20:19,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:20:19,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1258680813, now seen corresponding path program 1 times [2021-05-01 03:20:19,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:20:19,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286509963] [2021-05-01 03:20:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:20:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:19,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:19,863 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 03:20:19,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:19,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:19,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:20:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:19,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:19,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:19,917 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 03:20:19,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:20:19,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286509963] [2021-05-01 03:20:19,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286509963] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:20:19,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:20:19,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 03:20:19,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692681358] [2021-05-01 03:20:19,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 03:20:19,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:20:19,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 03:20:19,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 03:20:19,919 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:20:19,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:20:19,955 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-05-01 03:20:19,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 03:20:19,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-05-01 03:20:19,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:20:19,956 INFO L225 Difference]: With dead ends: 13 [2021-05-01 03:20:19,956 INFO L226 Difference]: Without dead ends: 13 [2021-05-01 03:20:19,956 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 03:20:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-01 03:20:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-01 03:20:19,958 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 03:20:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-01 03:20:19,958 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2021-05-01 03:20:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:20:19,959 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-01 03:20:19,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:20:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-01 03:20:19,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 03:20:19,959 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:20:19,959 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:20:19,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 03:20:19,959 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:20:19,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:20:19,960 INFO L82 PathProgramCache]: Analyzing trace with hash 391120150, now seen corresponding path program 1 times [2021-05-01 03:20:19,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:20:19,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838214643] [2021-05-01 03:20:19,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:20:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:20,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,004 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-05-01 03:20:20,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-01 03:20:20,017 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-05-01 03:20:20,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:20:20,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:20:20,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:20:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:20,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,076 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 03:20:20,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:20:20,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838214643] [2021-05-01 03:20:20,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838214643] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 03:20:20,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828739397] [2021-05-01 03:20:20,077 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 03:20:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:20,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-01 03:20:20,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-01 03:20:20,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,154 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-05-01 03:20:20,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 03:20:20,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 03:20:20,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,172 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.9 percent of original size [2021-05-01 03:20:20,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-05-01 03:20:20,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-01 03:20:20,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,193 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.4 percent of original size 84 [2021-05-01 03:20:20,196 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.4 percent of original size [2021-05-01 03:20:20,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 03:20:20,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-01 03:20:20,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 03:20:20,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-01 03:20:20,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 03:20:20,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,223 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-05-01 03:20:20,227 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,229 INFO L142 QuantifierPusher]: treesize reduction 6, result has 80.0 percent of original size [2021-05-01 03:20:20,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:20,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:20,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:20,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:20,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:20,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:20,263 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-05-01 03:20:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,266 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 03:20:20,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828739397] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 03:20:20,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-01 03:20:20,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-05-01 03:20:20,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251531242] [2021-05-01 03:20:20,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 03:20:20,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:20:20,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 03:20:20,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-05-01 03:20:20,271 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:20:20,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:20:20,387 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-05-01 03:20:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-01 03:20:20,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 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 03:20:20,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:20:20,388 INFO L225 Difference]: With dead ends: 17 [2021-05-01 03:20:20,388 INFO L226 Difference]: Without dead ends: 14 [2021-05-01 03:20:20,389 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 132.2ms TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-05-01 03:20:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-05-01 03:20:20,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-05-01 03:20:20,392 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 03:20:20,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-01 03:20:20,392 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-05-01 03:20:20,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:20:20,392 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-01 03:20:20,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:20:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-01 03:20:20,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-01 03:20:20,394 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:20:20,394 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:20:20,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-01 03:20:20,600 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:20:20,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:20:20,600 INFO L82 PathProgramCache]: Analyzing trace with hash -733456627, now seen corresponding path program 2 times [2021-05-01 03:20:20,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:20:20,601 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854545451] [2021-05-01 03:20:20,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:20:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:20,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,638 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-05-01 03:20:20,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-01 03:20:20,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 03:20:20,649 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-05-01 03:20:20,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:20:20,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:20:20,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:20:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:20:20,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 03:20:20,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:20:20,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854545451] [2021-05-01 03:20:20,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854545451] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 03:20:20,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361671812] [2021-05-01 03:20:20,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-01 03:20:20,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-01 03:20:20,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-01 03:20:20,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-01 03:20:20,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-01 03:20:20,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:20,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:20,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,773 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-05-01 03:20:20,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 03:20:20,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 03:20:20,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 03:20:20,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 03:20:20,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 03:20:20,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,880 INFO L142 QuantifierPusher]: treesize reduction 104, result has 41.9 percent of original size [2021-05-01 03:20:20,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-05-01 03:20:20,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 03:20:20,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 03:20:20,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-05-01 03:20:20,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,907 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.2 percent of original size 92 [2021-05-01 03:20:20,908 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.2 percent of original size [2021-05-01 03:20:20,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 03:20:20,923 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-05-01 03:20:20,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 03:20:20,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,957 INFO L142 QuantifierPusher]: treesize reduction 6, result has 94.6 percent of original size [2021-05-01 03:20:20,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 03:20:20,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 03:20:20,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,973 INFO L147 QuantifierPusher]: treesize reduction -4, result has 105.3 percent of original size 79 [2021-05-01 03:20:20,974 INFO L142 QuantifierPusher]: treesize reduction -4, result has 105.3 percent of original size [2021-05-01 03:20:20,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-05-01 03:20:20,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-01 03:20:20,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 03:20:20,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:20,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-01 03:20:20,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 03:20:20,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,996 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-05-01 03:20:20,998 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:20,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:20:21,003 INFO L142 QuantifierPusher]: treesize reduction 6, result has 80.0 percent of original size [2021-05-01 03:20:21,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:21,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:21,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:21,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:21,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:21,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:20:21,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:21,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:21,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:21,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:21,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:21,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:20:21,035 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-05-01 03:20:21,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:21,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:21,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:21,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:21,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:21,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:20:21,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:20:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-01 03:20:21,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361671812] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 03:20:21,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-01 03:20:21,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-05-01 03:20:21,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795960249] [2021-05-01 03:20:21,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-01 03:20:21,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:20:21,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-01 03:20:21,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-05-01 03:20:21,042 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 8 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:20:21,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:20:21,151 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-05-01 03:20:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-01 03:20:21,152 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 8 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-05-01 03:20:21,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:20:21,152 INFO L225 Difference]: With dead ends: 12 [2021-05-01 03:20:21,152 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 03:20:21,153 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 197.8ms TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-05-01 03:20:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 03:20:21,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 03:20:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-01 03:20:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 03:20:21,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-05-01 03:20:21,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:20:21,153 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 03:20:21,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 8 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:20:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 03:20:21,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 03:20:21,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-01 03:20:21,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:20:21 BasicIcfg [2021-05-01 03:20:21,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 03:20:21,372 INFO L168 Benchmark]: Toolchain (without parser) took 2403.07 ms. Allocated memory was 190.8 MB in the beginning and 229.6 MB in the end (delta: 38.8 MB). Free memory was 156.6 MB in the beginning and 122.7 MB in the end (delta: 33.9 MB). Peak memory consumption was 73.1 MB. Max. memory is 8.0 GB. [2021-05-01 03:20:21,372 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 190.8 MB. Free memory is still 173.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:20:21,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.38 ms. Allocated memory is still 190.8 MB. Free memory was 156.4 MB in the beginning and 146.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-01 03:20:21,372 INFO L168 Benchmark]: Boogie Preprocessor took 54.61 ms. Allocated memory is still 190.8 MB. Free memory was 146.9 MB in the beginning and 174.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. [2021-05-01 03:20:21,373 INFO L168 Benchmark]: RCFGBuilder took 219.67 ms. Allocated memory is still 190.8 MB. Free memory was 174.2 MB in the beginning and 161.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-05-01 03:20:21,373 INFO L168 Benchmark]: IcfgTransformer took 164.31 ms. Allocated memory is still 190.8 MB. Free memory was 161.1 MB in the beginning and 146.9 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-01 03:20:21,373 INFO L168 Benchmark]: TraceAbstraction took 1793.13 ms. Allocated memory was 190.8 MB in the beginning and 229.6 MB in the end (delta: 38.8 MB). Free memory was 146.4 MB in the beginning and 122.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 63.6 MB. Max. memory is 8.0 GB. [2021-05-01 03:20:21,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 0 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 0.28 ms. Allocated memory is still 190.8 MB. Free memory is still 173.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 165.38 ms. Allocated memory is still 190.8 MB. Free memory was 156.4 MB in the beginning and 146.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 54.61 ms. Allocated memory is still 190.8 MB. Free memory was 146.9 MB in the beginning and 174.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 219.67 ms. Allocated memory is still 190.8 MB. Free memory was 174.2 MB in the beginning and 161.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 164.31 ms. Allocated memory is still 190.8 MB. Free memory was 161.1 MB in the beginning and 146.9 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1793.13 ms. Allocated memory was 190.8 MB in the beginning and 229.6 MB in the end (delta: 38.8 MB). Free memory was 146.4 MB in the beginning and 122.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 63.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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. VerificationResult: SAFE, OverallTime: 1761.5ms, OverallIterations: 4, TraceHistogramMax: 2, EmptinessCheckTime: 9.3ms, AutomataDifference: 311.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 40 SDtfs, 31 SDslu, 71 SDs, 0 SdLazy, 95 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 68.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 393.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.0ms SsaConstructionTime, 72.2ms SatisfiabilityAnalysisTime, 776.3ms InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 405 SizeOfPredicates, 4 NumberOfNonLiveVariables, 149 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...