/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/nec40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 02:48:12,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 02:48:12,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 02:48:12,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 02:48:12,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 02:48:12,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 02:48:12,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 02:48:12,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 02:48:12,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 02:48:12,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 02:48:12,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 02:48:12,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 02:48:12,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 02:48:12,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 02:48:12,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 02:48:12,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 02:48:12,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 02:48:12,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 02:48:12,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 02:48:12,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 02:48:12,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 02:48:12,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 02:48:12,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 02:48:12,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 02:48:12,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 02:48:12,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 02:48:12,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 02:48:12,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 02:48:12,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 02:48:12,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 02:48:12,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 02:48:12,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 02:48:12,124 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 02:48:12,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 02:48:12,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 02:48:12,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 02:48:12,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 02:48:12,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 02:48:12,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 02:48:12,125 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 02:48:12,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 02:48:12,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 02:48:12,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 02:48:12,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 02:48:12,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 02:48:12,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 02:48:12,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 02:48:12,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 02:48:12,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 02:48:12,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 02:48:12,127 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 02:48:12,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 02:48:12,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 02:48:12,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 02:48:12,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 02:48:12,371 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 02:48:12,372 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 02:48:12,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec40.c [2021-05-01 02:48:12,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9efeac018/33d0dc8d29934040ac3068ea224ed90e/FLAGf551528df [2021-05-01 02:48:12,808 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 02:48:12,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec40.c [2021-05-01 02:48:12,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9efeac018/33d0dc8d29934040ac3068ea224ed90e/FLAGf551528df [2021-05-01 02:48:12,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9efeac018/33d0dc8d29934040ac3068ea224ed90e [2021-05-01 02:48:12,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 02:48:12,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 02:48:12,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 02:48:12,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 02:48:12,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 02:48:12,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:48:12" (1/1) ... [2021-05-01 02:48:12,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ee1de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:12, skipping insertion in model container [2021-05-01 02:48:12,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:48:12" (1/1) ... [2021-05-01 02:48:12,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 02:48:12,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 02:48:12,960 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/nec40.c[317,330] [2021-05-01 02:48:12,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 02:48:12,979 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 02:48:13,005 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/nec40.c[317,330] [2021-05-01 02:48:13,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 02:48:13,058 INFO L208 MainTranslator]: Completed translation [2021-05-01 02:48:13,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13 WrapperNode [2021-05-01 02:48:13,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 02:48:13,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 02:48:13,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 02:48:13,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 02:48:13,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13" (1/1) ... [2021-05-01 02:48:13,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13" (1/1) ... [2021-05-01 02:48:13,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13" (1/1) ... [2021-05-01 02:48:13,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13" (1/1) ... [2021-05-01 02:48:13,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13" (1/1) ... [2021-05-01 02:48:13,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13" (1/1) ... [2021-05-01 02:48:13,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13" (1/1) ... [2021-05-01 02:48:13,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 02:48:13,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 02:48:13,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 02:48:13,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 02:48:13,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13" (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 02:48:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 02:48:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 02:48:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 02:48:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 02:48:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 02:48:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 02:48:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 02:48:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 02:48:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 02:48:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 02:48:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 02:48:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 02:48:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 02:48:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 02:48:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 02:48:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 02:48:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 02:48:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 02:48:13,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 02:48:13,387 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 02:48:13,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:13 BoogieIcfgContainer [2021-05-01 02:48:13,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 02:48:13,389 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 02:48:13,389 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 02:48:13,389 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 02:48:13,391 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:13" (1/1) ... [2021-05-01 02:48:13,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:48:13 BasicIcfg [2021-05-01 02:48:13,414 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 02:48:13,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 02:48:13,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 02:48:13,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 02:48:13,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 02:48:12" (1/4) ... [2021-05-01 02:48:13,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29803fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:48:13, skipping insertion in model container [2021-05-01 02:48:13,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:13" (2/4) ... [2021-05-01 02:48:13,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29803fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:48:13, skipping insertion in model container [2021-05-01 02:48:13,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:13" (3/4) ... [2021-05-01 02:48:13,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29803fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:48:13, skipping insertion in model container [2021-05-01 02:48:13,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:48:13" (4/4) ... [2021-05-01 02:48:13,419 INFO L111 eAbstractionObserver]: Analyzing ICFG nec40.cJordan [2021-05-01 02:48:13,422 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 02:48:13,425 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 02:48:13,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 02:48:13,474 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 02:48:13,474 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 02:48:13,474 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 02:48:13,474 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 02:48:13,474 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 02:48:13,474 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 02:48:13,475 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 02:48:13,475 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 02:48:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 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 02:48:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-01 02:48:13,490 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:13,490 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:13,490 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:13,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:13,497 INFO L82 PathProgramCache]: Analyzing trace with hash -42314719, now seen corresponding path program 1 times [2021-05-01 02:48:13,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:13,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689520861] [2021-05-01 02:48:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:13,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:13,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:13,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:13,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:13,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:13,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:13,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:13,740 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 02:48:13,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:13,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689520861] [2021-05-01 02:48:13,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689520861] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:13,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:13,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 02:48:13,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560819238] [2021-05-01 02:48:13,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 02:48:13,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:13,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 02:48:13,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 02:48:13,753 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 02:48:13,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:13,788 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-05-01 02:48:13,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 02:48:13,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 14 [2021-05-01 02:48:13,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:13,793 INFO L225 Difference]: With dead ends: 23 [2021-05-01 02:48:13,793 INFO L226 Difference]: Without dead ends: 16 [2021-05-01 02:48:13,794 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 02:48:13,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-05-01 02:48:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-05-01 02:48:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-05-01 02:48:13,812 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2021-05-01 02:48:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:13,812 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-05-01 02:48:13,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 02:48:13,813 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-05-01 02:48:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-01 02:48:13,814 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:13,814 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:13,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 02:48:13,814 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:13,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:13,815 INFO L82 PathProgramCache]: Analyzing trace with hash 195966441, now seen corresponding path program 1 times [2021-05-01 02:48:13,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:13,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320795330] [2021-05-01 02:48:13,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:13,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:13,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-05-01 02:48:13,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:13,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-05-01 02:48:13,888 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-05-01 02:48:13,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 02:48:13,899 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-05-01 02:48:13,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 02:48:13,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:13,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:13,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:13,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:13,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:13,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:13,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-05-01 02:48:13,978 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 02:48:13,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:13,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320795330] [2021-05-01 02:48:13,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320795330] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:13,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:13,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:13,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24108613] [2021-05-01 02:48:13,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 02:48:13,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:13,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 02:48:13,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:13,980 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:14,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:14,078 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-05-01 02:48:14,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 02:48:14,079 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), 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) Word has length 15 [2021-05-01 02:48:14,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:14,080 INFO L225 Difference]: With dead ends: 21 [2021-05-01 02:48:14,080 INFO L226 Difference]: Without dead ends: 18 [2021-05-01 02:48:14,083 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 98.3ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-05-01 02:48:14,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-05-01 02:48:14,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-05-01 02:48:14,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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 02:48:14,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-05-01 02:48:14,090 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2021-05-01 02:48:14,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:14,090 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-05-01 02:48:14,090 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), 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 02:48:14,090 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-05-01 02:48:14,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-01 02:48:14,091 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:14,091 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:14,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 02:48:14,091 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:14,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:14,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1475071974, now seen corresponding path program 1 times [2021-05-01 02:48:14,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:14,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8625985] [2021-05-01 02:48:14,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:14,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:14,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 02:48:14,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:14,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-05-01 02:48:14,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:14,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:14,153 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 02:48:14,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 02:48:14,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:14,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:14,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:14,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:14,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-05-01 02:48:14,222 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 02:48:14,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:14,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8625985] [2021-05-01 02:48:14,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8625985] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:14,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:14,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:14,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887989822] [2021-05-01 02:48:14,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 02:48:14,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:14,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 02:48:14,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:14,235 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 02:48:14,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:14,299 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-05-01 02:48:14,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 02:48:14,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 17 [2021-05-01 02:48:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:14,300 INFO L225 Difference]: With dead ends: 8 [2021-05-01 02:48:14,300 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 02:48:14,300 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 98.9ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-05-01 02:48:14,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 02:48:14,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 02:48:14,300 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 02:48:14,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 02:48:14,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-05-01 02:48:14,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:14,301 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 02:48:14,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 02:48:14,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 02:48:14,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 02:48:14,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 02:48:14,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:48:14 BasicIcfg [2021-05-01 02:48:14,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 02:48:14,305 INFO L168 Benchmark]: Toolchain (without parser) took 1476.39 ms. Allocated memory is still 200.3 MB. Free memory was 164.9 MB in the beginning and 166.9 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 02:48:14,305 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 200.3 MB. Free memory was 181.3 MB in the beginning and 181.2 MB in the end (delta: 106.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 02:48:14,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.08 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 184.5 MB in the end (delta: -19.8 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:14,306 INFO L168 Benchmark]: Boogie Preprocessor took 33.35 ms. Allocated memory is still 200.3 MB. Free memory was 184.5 MB in the beginning and 182.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:14,306 INFO L168 Benchmark]: RCFGBuilder took 293.79 ms. Allocated memory is still 200.3 MB. Free memory was 182.9 MB in the beginning and 166.6 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:14,306 INFO L168 Benchmark]: IcfgTransformer took 25.11 ms. Allocated memory is still 200.3 MB. Free memory was 166.6 MB in the beginning and 165.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:14,307 INFO L168 Benchmark]: TraceAbstraction took 889.46 ms. Allocated memory is still 200.3 MB. Free memory was 164.5 MB in the beginning and 166.9 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 02:48:14,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 200.3 MB. Free memory was 181.3 MB in the beginning and 181.2 MB in the end (delta: 106.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 228.08 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 184.5 MB in the end (delta: -19.8 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.35 ms. Allocated memory is still 200.3 MB. Free memory was 184.5 MB in the beginning and 182.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 293.79 ms. Allocated memory is still 200.3 MB. Free memory was 182.9 MB in the beginning and 166.6 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 25.11 ms. Allocated memory is still 200.3 MB. Free memory was 166.6 MB in the beginning and 165.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 889.46 ms. Allocated memory is still 200.3 MB. Free memory was 164.5 MB in the beginning and 166.9 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 829.0ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 9.0ms, AutomataDifference: 218.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 40 SDtfs, 16 SDslu, 23 SDs, 0 SdLazy, 62 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 268.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.9ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.9ms SsaConstructionTime, 79.2ms SatisfiabilityAnalysisTime, 375.3ms InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 315 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...