/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/loops/n.c40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 02:48:00,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 02:48:00,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 02:48:00,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-01 02:48:00,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 02:48:00,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 02:48:00,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 02:48:00,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 02:48:00,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 02:48:00,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 02:48:00,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 02:48:00,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 02:48:00,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 02:48:00,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 02:48:00,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 02:48:00,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 02:48:00,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 02:48:00,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 02:48:00,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 02:48:00,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 02:48:00,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 02:48:00,364 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 02:48:00,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 02:48:00,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 02:48:00,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 02:48:00,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 02:48:00,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 02:48:00,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 02:48:00,366 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 02:48:00,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 02:48:00,366 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 02:48:00,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 02:48:00,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 02:48:00,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 02:48:00,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 02:48:00,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 02:48:00,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 02:48:00,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 02:48:00,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 02:48:00,367 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 02:48:00,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 02:48:00,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 02:48:00,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 02:48:00,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 02:48:00,624 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 02:48:00,624 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 02:48:00,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40.c [2021-05-01 02:48:00,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af96b89aa/c365f71115ce48cca90e96b04a6c0c29/FLAG8adb81df9 [2021-05-01 02:48:00,990 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 02:48:00,990 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c [2021-05-01 02:48:00,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af96b89aa/c365f71115ce48cca90e96b04a6c0c29/FLAG8adb81df9 [2021-05-01 02:48:01,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af96b89aa/c365f71115ce48cca90e96b04a6c0c29 [2021-05-01 02:48:01,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 02:48:01,451 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 02:48:01,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 02:48:01,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 02:48:01,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 02:48:01,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b1d9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01, skipping insertion in model container [2021-05-01 02:48:01,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 02:48:01,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 02:48:01,561 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c[498,511] [2021-05-01 02:48:01,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 02:48:01,571 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 02:48:01,606 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c[498,511] [2021-05-01 02:48:01,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 02:48:01,626 INFO L208 MainTranslator]: Completed translation [2021-05-01 02:48:01,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01 WrapperNode [2021-05-01 02:48:01,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 02:48:01,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 02:48:01,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 02:48:01,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 02:48:01,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 02:48:01,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 02:48:01,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 02:48:01,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 02:48:01,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01" (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 02:48:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 02:48:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 02:48:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 02:48:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 02:48:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 02:48:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 02:48:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 02:48:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 02:48:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 02:48:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 02:48:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 02:48:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 02:48:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 02:48:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 02:48:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 02:48:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 02:48:01,932 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 02:48:01,932 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 02:48:01,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:01 BoogieIcfgContainer [2021-05-01 02:48:01,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 02:48:01,933 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 02:48:01,933 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 02:48:01,934 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 02:48:01,935 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:01" (1/1) ... [2021-05-01 02:48:01,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:48:01 BasicIcfg [2021-05-01 02:48:01,945 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 02:48:01,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 02:48:01,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 02:48:01,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 02:48:01,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 02:48:01" (1/4) ... [2021-05-01 02:48:01,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1b102d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:48:01, skipping insertion in model container [2021-05-01 02:48:01,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:01" (2/4) ... [2021-05-01 02:48:01,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1b102d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:48:01, skipping insertion in model container [2021-05-01 02:48:01,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:01" (3/4) ... [2021-05-01 02:48:01,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1b102d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:48:01, skipping insertion in model container [2021-05-01 02:48:01,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:48:01" (4/4) ... [2021-05-01 02:48:01,949 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c40.cJordan [2021-05-01 02:48:01,953 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 02:48:01,955 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 02:48:01,964 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 02:48:01,976 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 02:48:01,977 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 02:48:01,977 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 02:48:01,977 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 02:48:01,977 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 02:48:01,977 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 02:48:01,977 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 02:48:01,977 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 02:48:01,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 02:48:01,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-01 02:48:01,988 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:01,989 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:01,989 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:01,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:01,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1525854499, now seen corresponding path program 1 times [2021-05-01 02:48:01,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:01,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981468453] [2021-05-01 02:48:01,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:02,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:02,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:02,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:02,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:02,233 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 02:48:02,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:02,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981468453] [2021-05-01 02:48:02,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981468453] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:02,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:02,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 02:48:02,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108433323] [2021-05-01 02:48:02,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 02:48:02,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:02,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 02:48:02,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 02:48:02,248 INFO L87 Difference]: Start difference. First operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:02,301 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-05-01 02:48:02,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 02:48:02,303 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), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-05-01 02:48:02,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:02,308 INFO L225 Difference]: With dead ends: 18 [2021-05-01 02:48:02,308 INFO L226 Difference]: Without dead ends: 13 [2021-05-01 02:48:02,309 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 02:48:02,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-01 02:48:02,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-01 02:48:02,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:02,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-01 02:48:02,328 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2021-05-01 02:48:02,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:02,328 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-01 02:48:02,328 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), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:02,328 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-01 02:48:02,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 02:48:02,329 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:02,329 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:02,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 02:48:02,329 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:02,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:02,330 INFO L82 PathProgramCache]: Analyzing trace with hash 86310556, now seen corresponding path program 1 times [2021-05-01 02:48:02,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:02,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751152049] [2021-05-01 02:48:02,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:02,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:02,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:02,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:02,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:02,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:02,475 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 02:48:02,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:02,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751152049] [2021-05-01 02:48:02,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751152049] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:02,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:02,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 02:48:02,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521754440] [2021-05-01 02:48:02,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 02:48:02,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:02,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 02:48:02,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:02,477 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:02,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:02,554 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-05-01 02:48:02,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:02,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 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 02:48:02,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:02,555 INFO L225 Difference]: With dead ends: 17 [2021-05-01 02:48:02,555 INFO L226 Difference]: Without dead ends: 15 [2021-05-01 02:48:02,556 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 104.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:02,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-01 02:48:02,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-01 02:48:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:02,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-05-01 02:48:02,561 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2021-05-01 02:48:02,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:02,561 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-05-01 02:48:02,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-05-01 02:48:02,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-01 02:48:02,562 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:02,562 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:02,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 02:48:02,562 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:02,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:02,563 INFO L82 PathProgramCache]: Analyzing trace with hash -2098026081, now seen corresponding path program 1 times [2021-05-01 02:48:02,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:02,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594694613] [2021-05-01 02:48:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:02,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 02:48:02,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 02:48:02,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:02,618 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-05-01 02:48:02,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 02:48:02,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:02,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:02,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:02,671 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-05-01 02:48:02,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 02:48:02,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 02:48:02,672 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:02,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594694613] [2021-05-01 02:48:02,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594694613] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:02,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:02,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:02,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978369204] [2021-05-01 02:48:02,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 02:48:02,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:02,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 02:48:02,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:02,674 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:02,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:02,743 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-05-01 02:48:02,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 02:48:02,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 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 02:48:02,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:02,744 INFO L225 Difference]: With dead ends: 8 [2021-05-01 02:48:02,744 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 02:48:02,744 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 98.0ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-05-01 02:48:02,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 02:48:02,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 02:48:02,744 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 02:48:02,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 02:48:02,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-05-01 02:48:02,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:02,745 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 02:48:02,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:02,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 02:48:02,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 02:48:02,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 02:48:02,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:48:02 BasicIcfg [2021-05-01 02:48:02,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 02:48:02,751 INFO L168 Benchmark]: Toolchain (without parser) took 1299.77 ms. Allocated memory is still 202.4 MB. Free memory was 167.5 MB in the beginning and 114.5 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.9 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:02,753 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 202.4 MB. Free memory is still 184.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 02:48:02,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.00 ms. Allocated memory is still 202.4 MB. Free memory was 167.3 MB in the beginning and 185.4 MB in the end (delta: -18.1 MB). Peak memory consumption was 10.6 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:02,757 INFO L168 Benchmark]: Boogie Preprocessor took 31.46 ms. Allocated memory is still 202.4 MB. Free memory was 185.4 MB in the beginning and 184.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:02,757 INFO L168 Benchmark]: RCFGBuilder took 273.06 ms. Allocated memory is still 202.4 MB. Free memory was 184.0 MB in the beginning and 169.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:02,758 INFO L168 Benchmark]: IcfgTransformer took 11.87 ms. Allocated memory is still 202.4 MB. Free memory was 169.3 MB in the beginning and 167.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:02,758 INFO L168 Benchmark]: TraceAbstraction took 804.24 ms. Allocated memory is still 202.4 MB. Free memory was 167.6 MB in the beginning and 114.5 MB in the end (delta: 53.1 MB). Peak memory consumption was 53.8 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:02,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 202.4 MB. Free memory is still 184.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 175.00 ms. Allocated memory is still 202.4 MB. Free memory was 167.3 MB in the beginning and 185.4 MB in the end (delta: -18.1 MB). Peak memory consumption was 10.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.46 ms. Allocated memory is still 202.4 MB. Free memory was 185.4 MB in the beginning and 184.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 273.06 ms. Allocated memory is still 202.4 MB. Free memory was 184.0 MB in the beginning and 169.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 11.87 ms. Allocated memory is still 202.4 MB. Free memory was 169.3 MB in the beginning and 167.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 804.24 ms. Allocated memory is still 202.4 MB. Free memory was 167.6 MB in the beginning and 114.5 MB in the end (delta: 53.1 MB). Peak memory consumption was 53.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 770.7ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 7.1ms, AutomataDifference: 220.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 SDtfs, 6 SDslu, 13 SDs, 0 SdLazy, 42 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 257.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.5ms SsaConstructionTime, 58.2ms SatisfiabilityAnalysisTime, 353.0ms InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 273 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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...