/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 21:40:44,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 21:40:44,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 21:40:44,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 21:40:44,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 21:40:44,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 21:40:44,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 21:40:44,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 21:40:44,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 21:40:44,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 21:40:44,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 21:40:44,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 21:40:44,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 21:40:44,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 21:40:44,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 21:40:44,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 21:40:44,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 21:40:44,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 21:40:44,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 21:40:44,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 21:40:44,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 21:40:44,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 21:40:44,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 21:40:44,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 21:40:44,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 21:40:44,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 21:40:44,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 21:40:44,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 21:40:44,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 21:40:44,379 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 21:40:44,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 21:40:44,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 21:40:44,381 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 21:40:44,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 21:40:44,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 21:40:44,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 21:40:44,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 21:40:44,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 21:40:44,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 21:40:44,382 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 21:40:44,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 21:40:44,382 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 21:40:44,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 21:40:44,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 21:40:44,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 21:40:44,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 21:40:44,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 21:40:44,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 21:40:44,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 21:40:44,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 21:40:44,384 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 21:40:44,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 21:40:44,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 21:40:44,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 21:40:44,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 21:40:44,733 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 21:40:44,734 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 21:40:44,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound2.c [2021-05-02 21:40:44,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34aee6004/7f5c4d1b736f4b26868424fb3afc19bf/FLAG6c7f4275c [2021-05-02 21:40:45,245 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 21:40:45,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound2.c [2021-05-02 21:40:45,251 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34aee6004/7f5c4d1b736f4b26868424fb3afc19bf/FLAG6c7f4275c [2021-05-02 21:40:45,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34aee6004/7f5c4d1b736f4b26868424fb3afc19bf [2021-05-02 21:40:45,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 21:40:45,281 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 21:40:45,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 21:40:45,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 21:40:45,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 21:40:45,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:45,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0d516c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45, skipping insertion in model container [2021-05-02 21:40:45,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:45,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 21:40:45,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 21:40:45,460 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound2.c[573,586] [2021-05-02 21:40:45,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 21:40:45,484 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 21:40:45,496 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound2.c[573,586] [2021-05-02 21:40:45,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 21:40:45,520 INFO L208 MainTranslator]: Completed translation [2021-05-02 21:40:45,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45 WrapperNode [2021-05-02 21:40:45,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 21:40:45,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 21:40:45,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 21:40:45,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 21:40:45,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:45,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:45,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:45,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:45,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:45,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:45,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:45,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 21:40:45,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 21:40:45,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 21:40:45,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 21:40:45,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45" (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 [2021-05-02 21:40:45,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 21:40:45,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 21:40:45,690 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 21:40:45,691 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 21:40:45,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 21:40:45,691 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 21:40:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 21:40:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 21:40:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 21:40:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 21:40:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-02 21:40:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 21:40:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 21:40:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 21:40:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 21:40:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 21:40:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 21:40:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 21:40:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 21:40:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 21:40:45,969 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 21:40:45,970 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-02 21:40:45,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 09:40:45 BoogieIcfgContainer [2021-05-02 21:40:45,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 21:40:45,971 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 21:40:45,972 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 21:40:45,972 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 21:40:45,974 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 09:40:45" (1/1) ... [2021-05-02 21:40:46,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 09:40:46 BasicIcfg [2021-05-02 21:40:46,002 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 21:40:46,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 21:40:46,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 21:40:46,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 21:40:46,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 09:40:45" (1/4) ... [2021-05-02 21:40:46,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701b4b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 09:40:46, skipping insertion in model container [2021-05-02 21:40:46,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 09:40:45" (2/4) ... [2021-05-02 21:40:46,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701b4b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 09:40:46, skipping insertion in model container [2021-05-02 21:40:46,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 09:40:45" (3/4) ... [2021-05-02 21:40:46,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701b4b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 09:40:46, skipping insertion in model container [2021-05-02 21:40:46,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 09:40:46" (4/4) ... [2021-05-02 21:40:46,013 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound2.cJordan [2021-05-02 21:40:46,017 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 21:40:46,021 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 21:40:46,036 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 21:40:46,059 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 21:40:46,060 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 21:40:46,060 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 21:40:46,060 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 21:40:46,060 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 21:40:46,060 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 21:40:46,060 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 21:40:46,060 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 21:40:46,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 21:40:46,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-02 21:40:46,083 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 21:40:46,083 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 21:40:46,084 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 21:40:46,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 21:40:46,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1058806997, now seen corresponding path program 1 times [2021-05-02 21:40:46,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 21:40:46,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17676603] [2021-05-02 21:40:46,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 21:40:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 21:40:46,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 21:40:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 21:40:46,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 21:40:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 21:40:46,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-02 21:40:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 21:40:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 21:40:46,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 21:40:46,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17676603] [2021-05-02 21:40:46,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17676603] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 21:40:46,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 21:40:46,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 21:40:46,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601008329] [2021-05-02 21:40:46,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 21:40:46,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 21:40:46,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 21:40:46,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 21:40:46,373 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-02 21:40:46,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 21:40:46,442 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-05-02 21:40:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 21:40:46,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-05-02 21:40:46,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 21:40:46,451 INFO L225 Difference]: With dead ends: 29 [2021-05-02 21:40:46,451 INFO L226 Difference]: Without dead ends: 24 [2021-05-02 21:40:46,452 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 21:40:46,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-05-02 21:40:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-05-02 21:40:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-02 21:40:46,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-05-02 21:40:46,483 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 22 [2021-05-02 21:40:46,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 21:40:46,484 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-05-02 21:40:46,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-02 21:40:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-05-02 21:40:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-02 21:40:46,486 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 21:40:46,486 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 21:40:46,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 21:40:46,487 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 21:40:46,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 21:40:46,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1056930164, now seen corresponding path program 1 times [2021-05-02 21:40:46,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 21:40:46,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156778047] [2021-05-02 21:40:46,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 21:40:46,517 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 21:40:46,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731499944] [2021-05-02 21:40:46,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 21:40:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 21:40:46,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-02 21:40:46,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 21:40:46,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:46,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:46,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:46,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-02 21:40:46,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 21:40:46,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156778047] [2021-05-02 21:40:46,777 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 21:40:46,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731499944] [2021-05-02 21:40:46,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731499944] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 21:40:46,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 21:40:46,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-05-02 21:40:46,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432907428] [2021-05-02 21:40:46,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-02 21:40:46,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 21:40:46,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-02 21:40:46,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-02 21:40:46,780 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 21:40:46,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 21:40:46,850 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-05-02 21:40:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-02 21:40:46,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-05-02 21:40:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 21:40:46,852 INFO L225 Difference]: With dead ends: 33 [2021-05-02 21:40:46,852 INFO L226 Difference]: Without dead ends: 33 [2021-05-02 21:40:46,853 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 63.9ms TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-05-02 21:40:46,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-02 21:40:46,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2021-05-02 21:40:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 21:40:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-05-02 21:40:46,858 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 22 [2021-05-02 21:40:46,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 21:40:46,859 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-05-02 21:40:46,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 21:40:46,859 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-05-02 21:40:46,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-02 21:40:46,860 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 21:40:46,860 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 21:40:47,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 21:40:47,073 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 21:40:47,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 21:40:47,074 INFO L82 PathProgramCache]: Analyzing trace with hash -127181274, now seen corresponding path program 1 times [2021-05-02 21:40:47,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 21:40:47,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181364975] [2021-05-02 21:40:47,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 21:40:47,082 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 21:40:47,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157740228] [2021-05-02 21:40:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 21:40:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 21:40:47,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-02 21:40:47,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 21:40:47,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:47,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:47,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:47,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:47,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:47,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 21:40:47,279 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-02 21:40:47,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 21:40:47,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181364975] [2021-05-02 21:40:47,280 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 21:40:47,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157740228] [2021-05-02 21:40:47,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157740228] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 21:40:47,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 21:40:47,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-05-02 21:40:47,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16140089] [2021-05-02 21:40:47,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-02 21:40:47,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 21:40:47,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-02 21:40:47,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-05-02 21:40:47,282 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 21:40:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 21:40:47,399 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-05-02 21:40:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-02 21:40:47,400 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2021-05-02 21:40:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 21:40:47,401 INFO L225 Difference]: With dead ends: 28 [2021-05-02 21:40:47,401 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 21:40:47,402 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 103.0ms TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-05-02 21:40:47,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 21:40:47,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 21:40:47,403 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) [2021-05-02 21:40:47,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 21:40:47,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-05-02 21:40:47,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 21:40:47,403 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 21:40:47,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 21:40:47,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 21:40:47,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 21:40:47,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 21:40:47,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 09:40:47 BasicIcfg [2021-05-02 21:40:47,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 21:40:47,621 INFO L168 Benchmark]: Toolchain (without parser) took 2341.07 ms. Allocated memory is still 187.7 MB. Free memory was 153.8 MB in the beginning and 99.8 MB in the end (delta: 53.9 MB). Peak memory consumption was 54.4 MB. Max. memory is 8.0 GB. [2021-05-02 21:40:47,622 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 187.7 MB. Free memory was 170.6 MB in the beginning and 170.5 MB in the end (delta: 105.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 21:40:47,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.11 ms. Allocated memory is still 187.7 MB. Free memory was 153.6 MB in the beginning and 144.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-02 21:40:47,622 INFO L168 Benchmark]: Boogie Preprocessor took 44.92 ms. Allocated memory is still 187.7 MB. Free memory was 144.0 MB in the beginning and 142.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-02 21:40:47,622 INFO L168 Benchmark]: RCFGBuilder took 402.42 ms. Allocated memory is still 187.7 MB. Free memory was 142.4 MB in the beginning and 158.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 8.0 GB. [2021-05-02 21:40:47,622 INFO L168 Benchmark]: IcfgTransformer took 31.13 ms. Allocated memory is still 187.7 MB. Free memory was 158.2 MB in the beginning and 156.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-02 21:40:47,622 INFO L168 Benchmark]: TraceAbstraction took 1617.15 ms. Allocated memory is still 187.7 MB. Free memory was 156.1 MB in the beginning and 99.8 MB in the end (delta: 56.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 8.0 GB. [2021-05-02 21:40:47,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 187.7 MB. Free memory was 170.6 MB in the beginning and 170.5 MB in the end (delta: 105.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 237.11 ms. Allocated memory is still 187.7 MB. Free memory was 153.6 MB in the beginning and 144.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.92 ms. Allocated memory is still 187.7 MB. Free memory was 144.0 MB in the beginning and 142.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 402.42 ms. Allocated memory is still 187.7 MB. Free memory was 142.4 MB in the beginning and 158.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 8.0 GB. * IcfgTransformer took 31.13 ms. Allocated memory is still 187.7 MB. Free memory was 158.2 MB in the beginning and 156.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1617.15 ms. Allocated memory is still 187.7 MB. Free memory was 156.1 MB in the beginning and 99.8 MB in the end (delta: 56.3 MB). Peak memory consumption was 57.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 5 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1559.9ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 15.3ms, AutomataDifference: 292.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58 SDtfs, 53 SDslu, 155 SDs, 0 SdLazy, 165 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 137.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 202.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 25.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.2ms SsaConstructionTime, 109.5ms SatisfiabilityAnalysisTime, 456.2ms InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 199 SizeOfPredicates, 6 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 7/14 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...