/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-zilu/benchmark37_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 04:20:13,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 04:20:13,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 04:20:13,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 04:20:13,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 04:20:13,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 04:20:13,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 04:20:13,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 04:20:13,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 04:20:13,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 04:20:13,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 04:20:13,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 04:20:13,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 04:20:13,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 04:20:13,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 04:20:13,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 04:20:13,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 04:20:13,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 04:20:13,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 04:20:13,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 04:20:13,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 04:20:13,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 04:20:13,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 04:20:13,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 04:20:13,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 04:20:13,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 04:20:13,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 04:20:13,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 04:20:13,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 04:20:13,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 04:20:13,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 04:20:13,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 04:20:13,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 04:20:13,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 04:20:13,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 04:20:13,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 04:20:13,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 04:20:13,890 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 04:20:13,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 04:20:13,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 04:20:13,895 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 04:20:13,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 04:20:13,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 04:20:13,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 04:20:13,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 04:20:13,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 04:20:13,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 04:20:13,897 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 04:20:13,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 04:20:13,898 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 04:20:13,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 04:20:13,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 04:20:13,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 04:20:13,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 04:20:13,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 04:20:13,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 04:20:13,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 04:20:13,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 04:20:13,900 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 04:20:13,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 04:20:14,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 04:20:14,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 04:20:14,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 04:20:14,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 04:20:14,253 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 04:20:14,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark37_conjunctive.i [2021-05-01 04:20:14,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/925711577/d310f420ea724892847e4f3bf7461933/FLAG9dab1f9cb [2021-05-01 04:20:14,831 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 04:20:14,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark37_conjunctive.i [2021-05-01 04:20:14,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/925711577/d310f420ea724892847e4f3bf7461933/FLAG9dab1f9cb [2021-05-01 04:20:15,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/925711577/d310f420ea724892847e4f3bf7461933 [2021-05-01 04:20:15,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 04:20:15,331 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 04:20:15,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 04:20:15,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 04:20:15,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 04:20:15,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:15,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fac39c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15, skipping insertion in model container [2021-05-01 04:20:15,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:15,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 04:20:15,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 04:20:15,475 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark37_conjunctive.i[873,886] [2021-05-01 04:20:15,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 04:20:15,490 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 04:20:15,501 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark37_conjunctive.i[873,886] [2021-05-01 04:20:15,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 04:20:15,515 INFO L208 MainTranslator]: Completed translation [2021-05-01 04:20:15,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15 WrapperNode [2021-05-01 04:20:15,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 04:20:15,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 04:20:15,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 04:20:15,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 04:20:15,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:15,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:15,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:15,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:15,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:15,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:15,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:15,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 04:20:15,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 04:20:15,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 04:20:15,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 04:20:15,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15" (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 04:20:15,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 04:20:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 04:20:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 04:20:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 04:20:15,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 04:20:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 04:20:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 04:20:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 04:20:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 04:20:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 04:20:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 04:20:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-05-01 04:20:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 04:20:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 04:20:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 04:20:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 04:20:15,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 04:20:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 04:20:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 04:20:15,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 04:20:15,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 04:20:15,961 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 04:20:15,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 04:20:15 BoogieIcfgContainer [2021-05-01 04:20:15,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 04:20:15,963 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 04:20:15,963 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 04:20:15,964 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 04:20:15,966 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 04:20:15" (1/1) ... [2021-05-01 04:20:16,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 04:20:16,054 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~x~0_3) InVars {main_~x~0=v_main_~x~0_3} OutVars{main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[] [2021-05-01 04:20:16,077 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 86.9 percent of original size [2021-05-01 04:20:16,089 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,095 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,102 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,108 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,115 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,121 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,131 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,137 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 04:20:16,144 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,152 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,159 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,177 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 04:20:16,182 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,187 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 86.9 percent of original size 53 [2021-05-01 04:20:16,231 INFO L1111 elerationTransformer]: Accelerated Formula: (and (= v_main_~y~0_2 (+ v_main_~y~0_1 1)) (= v_main_~x~0_3 (+ v_main_~x~0_2 1)) (< 0 v_main_~x~0_3)) InVars {main_~x~0=v_main_~x~0_3, main_~y~0=v_main_~y~0_2} OutVars{main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_1, 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_~x~0_3 v_main_~x~0_2) (= v_main_~y~0_2 v_main_~y~0_1) (= v_itFin_1 0) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) (<= v_main_~x~0_3 0) (= |v_main_#t~post5_3| |v_main_#t~post5_1|)) (and (= v_main_~x~0_3 (+ v_itFin_1 v_main_~x~0_2)) (<= v_main_~x~0_3 v_itFin_1) (= v_main_~y~0_2 (+ v_itFin_1 v_main_~y~0_1)) (< v_itFin_1 (+ v_main_~x~0_3 1)) (< 0 v_main_~x~0_3))) InVars {main_~y~0=v_main_~y~0_2, main_#t~post5=|v_main_#t~post5_3|, main_~x~0=v_main_~x~0_3, main_#t~post6=|v_main_#t~post6_3|} OutVars{main_~y~0=v_main_~y~0_1, main_#t~post5=|v_main_#t~post5_1|, main_~x~0=v_main_~x~0_2, 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 04:20:16,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 04:20:16 BasicIcfg [2021-05-01 04:20:16,240 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 04:20:16,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 04:20:16,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 04:20:16,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 04:20:16,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 04:20:15" (1/4) ... [2021-05-01 04:20:16,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e5995b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 04:20:16, skipping insertion in model container [2021-05-01 04:20:16,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 04:20:15" (2/4) ... [2021-05-01 04:20:16,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e5995b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 04:20:16, skipping insertion in model container [2021-05-01 04:20:16,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 04:20:15" (3/4) ... [2021-05-01 04:20:16,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e5995b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 04:20:16, skipping insertion in model container [2021-05-01 04:20:16,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 04:20:16" (4/4) ... [2021-05-01 04:20:16,247 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark37_conjunctive.iJordan [2021-05-01 04:20:16,253 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 04:20:16,257 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 04:20:16,274 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 04:20:16,292 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 04:20:16,292 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 04:20:16,292 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 04:20:16,292 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 04:20:16,293 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 04:20:16,293 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 04:20:16,293 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 04:20:16,293 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 04:20:16,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 04:20:16,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 04:20:16,321 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 04:20:16,321 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 04:20:16,322 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 04:20:16,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 04:20:16,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times [2021-05-01 04:20:16,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 04:20:16,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387097256] [2021-05-01 04:20:16,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 04:20:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:20:16,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:20:16,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:20:16,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 04:20:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:20:16,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:20:16,587 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 04:20:16,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 04:20:16,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387097256] [2021-05-01 04:20:16,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387097256] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 04:20:16,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 04:20:16,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 04:20:16,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127663460] [2021-05-01 04:20:16,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 04:20:16,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 04:20:16,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 04:20:16,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 04:20:16,608 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:20:16,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 04:20:16,659 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-05-01 04:20:16,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 04:20:16,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-05-01 04:20:16,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 04:20:16,669 INFO L225 Difference]: With dead ends: 20 [2021-05-01 04:20:16,669 INFO L226 Difference]: Without dead ends: 13 [2021-05-01 04:20:16,671 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 04:20:16,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-01 04:20:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-01 04:20:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:20:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-01 04:20:16,698 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2021-05-01 04:20:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 04:20:16,699 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-01 04:20:16,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:20:16,700 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-01 04:20:16,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 04:20:16,701 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 04:20:16,701 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 04:20:16,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 04:20:16,703 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 04:20:16,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 04:20:16,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times [2021-05-01 04:20:16,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 04:20:16,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293183423] [2021-05-01 04:20:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 04:20:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:20:16,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:20:16,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:20:16,807 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-05-01 04:20:16,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 04:20:16,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 04:20:16,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 04:20:16,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 04:20:16,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:20:16,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 04:20:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 04:20:16,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 04:20:16,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 04:20:16,910 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 04:20:16,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 04:20:16,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293183423] [2021-05-01 04:20:16,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293183423] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 04:20:16,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 04:20:16,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 04:20:16,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204570520] [2021-05-01 04:20:16,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 04:20:16,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 04:20:16,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 04:20:16,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-01 04:20:16,913 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:20:17,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 04:20:17,071 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-05-01 04:20:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 04:20:17,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-05-01 04:20:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 04:20:17,072 INFO L225 Difference]: With dead ends: 11 [2021-05-01 04:20:17,072 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 04:20:17,073 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 197.7ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-05-01 04:20:17,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 04:20:17,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 04:20:17,073 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 04:20:17,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 04:20:17,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-05-01 04:20:17,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 04:20:17,074 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 04:20:17,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 04:20:17,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 04:20:17,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 04:20:17,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 04:20:17,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 04:20:17 BasicIcfg [2021-05-01 04:20:17,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 04:20:17,079 INFO L168 Benchmark]: Toolchain (without parser) took 1747.38 ms. Allocated memory is still 179.3 MB. Free memory was 144.6 MB in the beginning and 133.4 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.7 MB. Max. memory is 8.0 GB. [2021-05-01 04:20:17,079 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 179.3 MB. Free memory is still 161.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 04:20:17,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.55 ms. Allocated memory is still 179.3 MB. Free memory was 144.4 MB in the beginning and 135.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-01 04:20:17,080 INFO L168 Benchmark]: Boogie Preprocessor took 68.01 ms. Allocated memory is still 179.3 MB. Free memory was 135.0 MB in the beginning and 163.1 MB in the end (delta: -28.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-01 04:20:17,080 INFO L168 Benchmark]: RCFGBuilder took 376.67 ms. Allocated memory is still 179.3 MB. Free memory was 163.1 MB in the beginning and 149.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-01 04:20:17,081 INFO L168 Benchmark]: IcfgTransformer took 276.90 ms. Allocated memory is still 179.3 MB. Free memory was 149.4 MB in the beginning and 133.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-01 04:20:17,083 INFO L168 Benchmark]: TraceAbstraction took 836.29 ms. Allocated memory is still 179.3 MB. Free memory was 133.0 MB in the beginning and 133.4 MB in the end (delta: -377.6 kB). Peak memory consumption was 1.2 MB. Max. memory is 8.0 GB. [2021-05-01 04:20:17,090 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 0.16 ms. Allocated memory is still 179.3 MB. Free memory is still 161.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 179.55 ms. Allocated memory is still 179.3 MB. Free memory was 144.4 MB in the beginning and 135.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.01 ms. Allocated memory is still 179.3 MB. Free memory was 135.0 MB in the beginning and 163.1 MB in the end (delta: -28.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 376.67 ms. Allocated memory is still 179.3 MB. Free memory was 163.1 MB in the beginning and 149.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 276.90 ms. Allocated memory is still 179.3 MB. Free memory was 149.4 MB in the beginning and 133.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 836.29 ms. Allocated memory is still 179.3 MB. Free memory was 133.0 MB in the beginning and 133.4 MB in the end (delta: -377.6 kB). Peak memory consumption was 1.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 785.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 15.1ms, AutomataDifference: 237.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 18 SDslu, 24 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 246.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.4ms SsaConstructionTime, 58.1ms SatisfiabilityAnalysisTime, 292.4ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...