/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/jm2006.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 03:31:29,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 03:31:29,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 03:31:29,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 03:31:29,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 03:31:29,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 03:31:29,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 03:31:29,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 03:31:29,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 03:31:29,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 03:31:29,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 03:31:29,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 03:31:29,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 03:31:29,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 03:31:29,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 03:31:29,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 03:31:29,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 03:31:29,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 03:31:29,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 03:31:29,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 03:31:29,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 03:31:29,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 03:31:29,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 03:31:29,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 03:31:29,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-01 03:31:29,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-01 03:31:29,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-01 03:31:29,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-01 03:31:29,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-01 03:31:29,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-01 03:31:29,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 03:31:29,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 03:31:29,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 03:31:29,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 03:31:29,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 03:31:29,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 03:31:29,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 03:31:29,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 03:31:29,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 03:31:29,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 03:31:29,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 03:31:29,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 03:31:29,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 03:31:29,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 03:31:29,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 03:31:29,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 03:31:29,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 03:31:29,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 03:31:29,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 03:31:29,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 03:31:29,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 03:31:29,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 03:31:29,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 03:31:29,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 03:31:29,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 03:31:29,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 03:31:29,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 03:31:29,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 03:31:29,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 03:31:29,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 03:31:29,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:31:29,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 03:31:29,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 03:31:29,619 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 03:31:29,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 03:31:29,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 03:31:29,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 03:31:29,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 03:31:29,959 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 03:31:29,960 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 03:31:29,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.i [2021-05-01 03:31:30,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bdc20a8/e5702fdd9ac14a8496897e13f7b218c7/FLAGde6791921 [2021-05-01 03:31:30,528 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 03:31:30,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.i [2021-05-01 03:31:30,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bdc20a8/e5702fdd9ac14a8496897e13f7b218c7/FLAGde6791921 [2021-05-01 03:31:30,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bdc20a8/e5702fdd9ac14a8496897e13f7b218c7 [2021-05-01 03:31:30,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 03:31:30,880 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 03:31:30,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 03:31:30,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 03:31:30,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 03:31:30,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:31:30" (1/1) ... [2021-05-01 03:31:30,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e565fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:30, skipping insertion in model container [2021-05-01 03:31:30,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:31:30" (1/1) ... [2021-05-01 03:31:30,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 03:31:30,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 03:31:31,047 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/jm2006.i[895,908] [2021-05-01 03:31:31,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:31:31,065 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 03:31:31,075 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/jm2006.i[895,908] [2021-05-01 03:31:31,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:31:31,089 INFO L208 MainTranslator]: Completed translation [2021-05-01 03:31:31,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31 WrapperNode [2021-05-01 03:31:31,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 03:31:31,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 03:31:31,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 03:31:31,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 03:31:31,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31" (1/1) ... [2021-05-01 03:31:31,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31" (1/1) ... [2021-05-01 03:31:31,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31" (1/1) ... [2021-05-01 03:31:31,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31" (1/1) ... [2021-05-01 03:31:31,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31" (1/1) ... [2021-05-01 03:31:31,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31" (1/1) ... [2021-05-01 03:31:31,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31" (1/1) ... [2021-05-01 03:31:31,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 03:31:31,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 03:31:31,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 03:31:31,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 03:31:31,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31" (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 03:31:31,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 03:31:31,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 03:31:31,203 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 03:31:31,203 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 03:31:31,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 03:31:31,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 03:31:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 03:31:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 03:31:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 03:31:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 03:31:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 03:31:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 03:31:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 03:31:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 03:31:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 03:31:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 03:31:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 03:31:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 03:31:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 03:31:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 03:31:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 03:31:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 03:31:31,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 03:31:31,420 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 03:31:31,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:31:31 BoogieIcfgContainer [2021-05-01 03:31:31,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 03:31:31,422 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 03:31:31,422 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 03:31:31,423 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 03:31:31,425 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:31:31" (1/1) ... [2021-05-01 03:31:31,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:31:31,534 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_4 0)) InVars {main_~x~0=v_main_~x~0_4} OutVars{main_~x~0=v_main_~x~0_4} AuxVars[] AssignedVars[] [2021-05-01 03:31:31,582 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 79.7 percent of original size [2021-05-01 03:31:31,606 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,615 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,625 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,632 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 03:31:31,639 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 03:31:31,641 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 03:31:31,645 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,649 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,653 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,656 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,665 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,668 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,674 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,679 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 79.7 percent of original size 55 [2021-05-01 03:31:31,711 INFO L1111 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~x~0_3 1) v_main_~x~0_4) (= v_main_~y~0_4 (+ v_main_~y~0_3 1)) (not (= v_main_~x~0_4 0))) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_4} OutVars{main_~x~0=v_main_~x~0_3, main_~y~0=v_main_~y~0_3, main_#t~post5=|v_main_#t~post5_1|, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_#t~post5, main_#t~post6] with Formula: (or (and (= v_main_~y~0_4 (+ v_itFin_1 v_main_~y~0_3)) (< 0 v_itFin_1) (= v_main_~x~0_4 (+ v_itFin_1 v_main_~x~0_3)) (= v_main_~x~0_4 v_itFin_1)) (and (= v_main_~y~0_4 v_main_~y~0_3) (= v_itFin_1 0) (= v_main_~x~0_4 v_main_~x~0_3) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) (= v_main_~x~0_4 0) (= |v_main_#t~post5_3| |v_main_#t~post5_1|))) InVars {main_~y~0=v_main_~y~0_4, main_#t~post5=|v_main_#t~post5_3|, main_~x~0=v_main_~x~0_4, main_#t~post6=|v_main_#t~post6_3|} OutVars{main_~y~0=v_main_~y~0_3, main_#t~post5=|v_main_#t~post5_1|, main_~x~0=v_main_~x~0_3, main_#t~post6=|v_main_#t~post6_1|} AuxVars[v_itFin_1] AssignedVars[main_~x~0, main_~y~0, main_#t~post5, main_#t~post6] [2021-05-01 03:31:31,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:31:31 BasicIcfg [2021-05-01 03:31:31,727 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 03:31:31,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 03:31:31,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 03:31:31,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 03:31:31,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 03:31:30" (1/4) ... [2021-05-01 03:31:31,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b446019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:31:31, skipping insertion in model container [2021-05-01 03:31:31,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:31:31" (2/4) ... [2021-05-01 03:31:31,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b446019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:31:31, skipping insertion in model container [2021-05-01 03:31:31,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:31:31" (3/4) ... [2021-05-01 03:31:31,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b446019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:31:31, skipping insertion in model container [2021-05-01 03:31:31,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:31:31" (4/4) ... [2021-05-01 03:31:31,735 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.iJordan [2021-05-01 03:31:31,744 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 03:31:31,749 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 03:31:31,774 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 03:31:31,797 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 03:31:31,798 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 03:31:31,798 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 03:31:31,798 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 03:31:31,798 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 03:31:31,799 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 03:31:31,799 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 03:31:31,799 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 03:31:31,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 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 03:31:31,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-01 03:31:31,828 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:31:31,828 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:31:31,829 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:31:31,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:31:31,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1752834070, now seen corresponding path program 1 times [2021-05-01 03:31:31,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:31:31,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263552878] [2021-05-01 03:31:31,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:31:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:31,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:31,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:31,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:31:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:32,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,035 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 03:31:32,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:31:32,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263552878] [2021-05-01 03:31:32,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263552878] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:31:32,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:31:32,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 03:31:32,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93825903] [2021-05-01 03:31:32,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 03:31:32,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:31:32,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 03:31:32,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 03:31:32,058 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 03:31:32,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:31:32,098 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-05-01 03:31:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 03:31:32,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 13 [2021-05-01 03:31:32,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:31:32,110 INFO L225 Difference]: With dead ends: 21 [2021-05-01 03:31:32,110 INFO L226 Difference]: Without dead ends: 14 [2021-05-01 03:31:32,112 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 03:31:32,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-05-01 03:31:32,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-05-01 03:31:32,137 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 03:31:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-01 03:31:32,139 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 13 [2021-05-01 03:31:32,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:31:32,139 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-01 03:31:32,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 03:31:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-01 03:31:32,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-01 03:31:32,141 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:31:32,141 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:31:32,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 03:31:32,142 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:31:32,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:31:32,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1781463221, now seen corresponding path program 1 times [2021-05-01 03:31:32,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:31:32,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142226005] [2021-05-01 03:31:32,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:31:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:32,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,261 INFO L142 QuantifierPusher]: treesize reduction 10, result has 74.4 percent of original size [2021-05-01 03:31:32,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-01 03:31:32,306 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.0 percent of original size [2021-05-01 03:31:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 03:31:32,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:32,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:31:32,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:31:32,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:31:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:32,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,412 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 03:31:32,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:31:32,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142226005] [2021-05-01 03:31:32,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142226005] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:31:32,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:31:32,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-01 03:31:32,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322409672] [2021-05-01 03:31:32,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-01 03:31:32,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:31:32,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-01 03:31:32,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-01 03:31:32,416 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 03:31:32,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:31:32,676 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-05-01 03:31:32,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 03:31:32,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 13 [2021-05-01 03:31:32,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:31:32,678 INFO L225 Difference]: With dead ends: 19 [2021-05-01 03:31:32,678 INFO L226 Difference]: Without dead ends: 15 [2021-05-01 03:31:32,679 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 284.6ms TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-05-01 03:31:32,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-01 03:31:32,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-01 03:31:32,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 03:31:32,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-05-01 03:31:32,684 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2021-05-01 03:31:32,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:31:32,685 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-05-01 03:31:32,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 03:31:32,685 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-05-01 03:31:32,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-01 03:31:32,685 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:31:32,686 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:31:32,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 03:31:32,686 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:31:32,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:31:32,686 INFO L82 PathProgramCache]: Analyzing trace with hash 219122817, now seen corresponding path program 1 times [2021-05-01 03:31:32,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:31:32,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255991985] [2021-05-01 03:31:32,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:31:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:32,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:32,769 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.4 percent of original size [2021-05-01 03:31:32,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 03:31:32,794 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 03:31:32,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 03:31:32,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:31:32,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:31:32,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:31:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:32,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,845 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 03:31:32,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:31:32,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255991985] [2021-05-01 03:31:32,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255991985] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 03:31:32,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130466] [2021-05-01 03:31:32,846 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 03:31:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:32,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-01 03:31:32,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-01 03:31:32,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:32,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:32,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:32,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:32,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:32,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,956 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size 27 [2021-05-01 03:31:32,957 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-05-01 03:31:32,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:32,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:32,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:32,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:32,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:32,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:32,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:32,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 03:31:33,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,018 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 03:31:33,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:33,020 INFO L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-05-01 03:31:33,021 INFO L142 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-05-01 03:31:33,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 03:31:33,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 03:31:33,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,051 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-05-01 03:31:33,056 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,058 INFO L142 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size [2021-05-01 03:31:33,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:33,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,094 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-05-01 03:31:33,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,098 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 03:31:33,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130466] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 03:31:33,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-01 03:31:33,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-05-01 03:31:33,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232410562] [2021-05-01 03:31:33,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-01 03:31:33,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:31:33,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-01 03:31:33,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-05-01 03:31:33,101 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 8 states have internal predecessors, (16), 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 03:31:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:31:33,286 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-05-01 03:31:33,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 03:31:33,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 8 states have internal predecessors, (16), 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 14 [2021-05-01 03:31:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:31:33,288 INFO L225 Difference]: With dead ends: 20 [2021-05-01 03:31:33,288 INFO L226 Difference]: Without dead ends: 16 [2021-05-01 03:31:33,288 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 230.3ms TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-05-01 03:31:33,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-05-01 03:31:33,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-05-01 03:31:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 03:31:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-05-01 03:31:33,291 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2021-05-01 03:31:33,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:31:33,291 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-05-01 03:31:33,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 8 states have internal predecessors, (16), 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 03:31:33,291 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-05-01 03:31:33,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-01 03:31:33,292 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:31:33,292 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:31:33,517 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-01 03:31:33,517 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:31:33,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:31:33,518 INFO L82 PathProgramCache]: Analyzing trace with hash -968789451, now seen corresponding path program 2 times [2021-05-01 03:31:33,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:31:33,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372996754] [2021-05-01 03:31:33,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:31:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:33,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:33,612 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-05-01 03:31:33,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-05-01 03:31:33,632 INFO L142 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size [2021-05-01 03:31:33,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-05-01 03:31:33,655 INFO L142 QuantifierPusher]: treesize reduction 6, result has 77.8 percent of original size [2021-05-01 03:31:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 03:31:33,672 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 03:31:33,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 03:31:33,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:31:33,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:31:33,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:31:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:33,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,733 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 03:31:33,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:31:33,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372996754] [2021-05-01 03:31:33,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372996754] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 03:31:33,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181989274] [2021-05-01 03:31:33,736 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 03:31:33,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-01 03:31:33,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-01 03:31:33,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjunts are in the unsatisfiable core [2021-05-01 03:31:33,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-01 03:31:33,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:33,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:33,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:33,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:33,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,833 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 03:31:33,836 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size [2021-05-01 03:31:33,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 03:31:33,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 03:31:33,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 03:31:33,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 03:31:33,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 03:31:33,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 03:31:33,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 03:31:33,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,909 INFO L428 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-05-01 03:31:33,909 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-05-01 03:31:33,910 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,913 INFO L428 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-05-01 03:31:33,913 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-05-01 03:31:33,914 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,916 INFO L147 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size 29 [2021-05-01 03:31:33,917 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-05-01 03:31:33,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-01 03:31:33,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 03:31:33,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,968 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 03:31:33,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:33,969 INFO L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-05-01 03:31:33,970 INFO L142 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-05-01 03:31:33,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 03:31:33,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 03:31:33,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 03:31:33,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,996 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-05-01 03:31:33,997 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,998 INFO L142 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size [2021-05-01 03:31:34,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:34,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:34,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:34,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:34,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:34,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 03:31:34,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:34,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:34,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:34,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:34,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:34,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:34,025 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-05-01 03:31:34,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:34,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:34,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:34,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:34,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:34,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:34,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:34,027 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 03:31:34,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181989274] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-01 03:31:34,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-01 03:31:34,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2021-05-01 03:31:34,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825857145] [2021-05-01 03:31:34,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-01 03:31:34,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:31:34,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-01 03:31:34,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-05-01 03:31:34,029 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 11 states have internal predecessors, (18), 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 03:31:34,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:31:34,198 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-05-01 03:31:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 03:31:34,199 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 11 states have internal predecessors, (18), 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 15 [2021-05-01 03:31:34,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:31:34,199 INFO L225 Difference]: With dead ends: 14 [2021-05-01 03:31:34,199 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 03:31:34,199 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 299.2ms TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-05-01 03:31:34,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 03:31:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 03:31:34,200 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 03:31:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 03:31:34,200 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-05-01 03:31:34,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:31:34,200 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 03:31:34,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 11 states have internal predecessors, (18), 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 03:31:34,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 03:31:34,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 03:31:34,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-01 03:31:34,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:31:34 BasicIcfg [2021-05-01 03:31:34,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 03:31:34,429 INFO L168 Benchmark]: Toolchain (without parser) took 3548.57 ms. Allocated memory was 181.4 MB in the beginning and 218.1 MB in the end (delta: 36.7 MB). Free memory was 146.5 MB in the beginning and 158.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,429 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 181.4 MB. Free memory is still 163.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:31:34,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.06 ms. Allocated memory is still 181.4 MB. Free memory was 146.3 MB in the beginning and 161.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,429 INFO L168 Benchmark]: Boogie Preprocessor took 23.16 ms. Allocated memory is still 181.4 MB. Free memory was 161.5 MB in the beginning and 160.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,429 INFO L168 Benchmark]: RCFGBuilder took 307.47 ms. Allocated memory is still 181.4 MB. Free memory was 160.0 MB in the beginning and 145.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,429 INFO L168 Benchmark]: IcfgTransformer took 305.21 ms. Allocated memory is still 181.4 MB. Free memory was 145.8 MB in the beginning and 130.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,430 INFO L168 Benchmark]: TraceAbstraction took 2699.25 ms. Allocated memory was 181.4 MB in the beginning and 218.1 MB in the end (delta: 36.7 MB). Free memory was 130.1 MB in the beginning and 158.2 MB in the end (delta: -28.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 2 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 0.15 ms. Allocated memory is still 181.4 MB. Free memory is still 163.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 207.06 ms. Allocated memory is still 181.4 MB. Free memory was 146.3 MB in the beginning and 161.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.16 ms. Allocated memory is still 181.4 MB. Free memory was 161.5 MB in the beginning and 160.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 307.47 ms. Allocated memory is still 181.4 MB. Free memory was 160.0 MB in the beginning and 145.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 305.21 ms. Allocated memory is still 181.4 MB. Free memory was 145.8 MB in the beginning and 130.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2699.25 ms. Allocated memory was 181.4 MB in the beginning and 218.1 MB in the end (delta: 36.7 MB). Free memory was 130.1 MB in the beginning and 158.2 MB in the end (delta: -28.1 MB). Peak memory consumption was 9.9 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, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2630.4ms, OverallIterations: 4, TraceHistogramMax: 2, EmptinessCheckTime: 20.7ms, AutomataDifference: 691.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 SDtfs, 52 SDslu, 91 SDs, 0 SdLazy, 162 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 130.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 840.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 22.1ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.4ms SsaConstructionTime, 162.8ms SatisfiabilityAnalysisTime, 1059.2ms InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 490 SizeOfPredicates, 10 NumberOfNonLiveVariables, 175 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/8 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...