/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/loop-invariants/odd.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 19:05:48,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 19:05:48,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 19:05:48,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 19:05:48,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 19:05:48,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 19:05:48,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 19:05:48,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 19:05:48,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 19:05:48,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 19:05:48,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 19:05:48,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 19:05:48,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 19:05:48,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 19:05:48,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 19:05:48,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 19:05:48,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 19:05:48,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 19:05:48,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 19:05:48,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 19:05:48,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 19:05:48,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 19:05:48,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 19:05:48,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 19:05:48,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 19:05:48,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 19:05:48,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 19:05:48,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 19:05:48,713 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 19:05:48,724 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 19:05:48,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 19:05:48,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 19:05:48,727 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 19:05:48,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 19:05:48,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 19:05:48,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 19:05:48,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 19:05:48,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 19:05:48,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 19:05:48,728 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 19:05:48,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 19:05:48,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 19:05:48,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 19:05:48,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 19:05:48,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 19:05:48,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 19:05:48,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 19:05:48,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 19:05:48,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 19:05:48,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 19:05:48,730 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 19:05:48,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 19:05:49,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 19:05:49,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 19:05:49,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 19:05:49,059 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 19:05:49,059 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 19:05:49,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c [2021-05-02 19:05:49,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbfd4df9/c21d4e1af6e348ec9923ed276fc936b2/FLAG312e2db1d [2021-05-02 19:05:49,437 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 19:05:49,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c [2021-05-02 19:05:49,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbfd4df9/c21d4e1af6e348ec9923ed276fc936b2/FLAG312e2db1d [2021-05-02 19:05:49,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbfd4df9/c21d4e1af6e348ec9923ed276fc936b2 [2021-05-02 19:05:49,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 19:05:49,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 19:05:49,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 19:05:49,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 19:05:49,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 19:05:49,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 07:05:49" (1/1) ... [2021-05-02 19:05:49,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc9406f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:49, skipping insertion in model container [2021-05-02 19:05:49,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 07:05:49" (1/1) ... [2021-05-02 19:05:49,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 19:05:49,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 19:05:49,974 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c[350,363] [2021-05-02 19:05:49,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 19:05:49,986 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 19:05:50,036 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c[350,363] [2021-05-02 19:05:50,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 19:05:50,046 INFO L208 MainTranslator]: Completed translation [2021-05-02 19:05:50,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50 WrapperNode [2021-05-02 19:05:50,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 19:05:50,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 19:05:50,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 19:05:50,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 19:05:50,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50" (1/1) ... [2021-05-02 19:05:50,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50" (1/1) ... [2021-05-02 19:05:50,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50" (1/1) ... [2021-05-02 19:05:50,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50" (1/1) ... [2021-05-02 19:05:50,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50" (1/1) ... [2021-05-02 19:05:50,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50" (1/1) ... [2021-05-02 19:05:50,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50" (1/1) ... [2021-05-02 19:05:50,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 19:05:50,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 19:05:50,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 19:05:50,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 19:05:50,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50" (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 19:05:50,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 19:05:50,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 19:05:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 19:05:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 19:05:50,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 19:05:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 19:05:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 19:05:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 19:05:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 19:05:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-02 19:05:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 19:05:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 19:05:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 19:05:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 19:05:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 19:05:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 19:05:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 19:05:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 19:05:50,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 19:05:50,322 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-02 19:05:50,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:05:50 BoogieIcfgContainer [2021-05-02 19:05:50,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 19:05:50,323 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 19:05:50,323 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 19:05:50,324 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 19:05:50,326 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:05:50" (1/1) ... [2021-05-02 19:05:50,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 07:05:50 BasicIcfg [2021-05-02 19:05:50,350 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 19:05:50,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 19:05:50,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 19:05:50,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 19:05:50,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 07:05:49" (1/4) ... [2021-05-02 19:05:50,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db2d04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 07:05:50, skipping insertion in model container [2021-05-02 19:05:50,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 07:05:50" (2/4) ... [2021-05-02 19:05:50,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db2d04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 07:05:50, skipping insertion in model container [2021-05-02 19:05:50,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 07:05:50" (3/4) ... [2021-05-02 19:05:50,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db2d04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 07:05:50, skipping insertion in model container [2021-05-02 19:05:50,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 07:05:50" (4/4) ... [2021-05-02 19:05:50,355 INFO L111 eAbstractionObserver]: Analyzing ICFG odd.cJordan [2021-05-02 19:05:50,376 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 19:05:50,379 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 19:05:50,406 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 19:05:50,419 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 19:05:50,419 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 19:05:50,419 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 19:05:50,419 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 19:05:50,419 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 19:05:50,420 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 19:05:50,420 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 19:05:50,420 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 19:05:50,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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) [2021-05-02 19:05:50,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-02 19:05:50,462 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:05:50,462 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:05:50,462 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:05:50,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:05:50,466 INFO L82 PathProgramCache]: Analyzing trace with hash -487068095, now seen corresponding path program 1 times [2021-05-02 19:05:50,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:05:50,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607718656] [2021-05-02 19:05:50,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:05:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:05:50,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 19:05:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:05:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 19:05:50,705 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:05:50,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607718656] [2021-05-02 19:05:50,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607718656] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:05:50,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:05:50,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 19:05:50,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007871042] [2021-05-02 19:05:50,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 19:05:50,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:05:50,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 19:05:50,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:05:50,724 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-05-02 19:05:50,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:05:50,762 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-05-02 19:05:50,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 19:05:50,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11 [2021-05-02 19:05:50,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:05:50,773 INFO L225 Difference]: With dead ends: 20 [2021-05-02 19:05:50,773 INFO L226 Difference]: Without dead ends: 13 [2021-05-02 19:05:50,774 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 19:05:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-02 19:05:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-02 19:05:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:05:50,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-02 19:05:50,794 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2021-05-02 19:05:50,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:05:50,794 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-02 19:05:50,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-05-02 19:05:50,794 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-02 19:05:50,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-02 19:05:50,795 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:05:50,795 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:05:50,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 19:05:50,796 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:05:50,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:05:50,796 INFO L82 PathProgramCache]: Analyzing trace with hash 2110189820, now seen corresponding path program 1 times [2021-05-02 19:05:50,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:05:50,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159226073] [2021-05-02 19:05:50,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:05:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:05:50,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 19:05:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:05:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 19:05:50,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:05:50,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159226073] [2021-05-02 19:05:50,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159226073] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 19:05:50,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 19:05:50,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-02 19:05:50,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610396184] [2021-05-02 19:05:50,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-02 19:05:50,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:05:50,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-02 19:05:50,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-02 19:05:50,942 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:05:51,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:05:51,099 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-05-02 19:05:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-02 19:05:51,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-05-02 19:05:51,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:05:51,101 INFO L225 Difference]: With dead ends: 18 [2021-05-02 19:05:51,101 INFO L226 Difference]: Without dead ends: 15 [2021-05-02 19:05:51,102 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 151.3ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-05-02 19:05:51,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-02 19:05:51,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-02 19:05:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:05:51,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-05-02 19:05:51,107 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2021-05-02 19:05:51,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:05:51,108 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-05-02 19:05:51,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:05:51,108 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-05-02 19:05:51,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-02 19:05:51,109 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 19:05:51,109 INFO L523 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 19:05:51,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-02 19:05:51,109 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 19:05:51,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 19:05:51,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1523776447, now seen corresponding path program 1 times [2021-05-02 19:05:51,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 19:05:51,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387802007] [2021-05-02 19:05:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 19:05:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:05:51,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 19:05:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:05:51,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 19:05:51,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 19:05:51,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387802007] [2021-05-02 19:05:51,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387802007] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:05:51,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704036163] [2021-05-02 19:05:51,211 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 19:05:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 19:05:51,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-02 19:05:51,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 19:05:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 19:05:51,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704036163] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 19:05:51,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 19:05:51,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-05-02 19:05:51,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684741731] [2021-05-02 19:05:51,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 19:05:51,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 19:05:51,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 19:05:51,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-05-02 19:05:51,365 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:05:51,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 19:05:51,484 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-05-02 19:05:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-02 19:05:51,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-05-02 19:05:51,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 19:05:51,485 INFO L225 Difference]: With dead ends: 16 [2021-05-02 19:05:51,485 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 19:05:51,485 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 153.4ms TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-05-02 19:05:51,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 19:05:51,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 19:05:51,485 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 19:05:51,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 19:05:51,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-05-02 19:05:51,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 19:05:51,486 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 19:05:51,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 19:05:51,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 19:05:51,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 19:05:51,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-02 19:05:51,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 07:05:51 BasicIcfg [2021-05-02 19:05:51,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 19:05:51,706 INFO L168 Benchmark]: Toolchain (without parser) took 1852.00 ms. Allocated memory is still 199.2 MB. Free memory was 164.8 MB in the beginning and 103.9 MB in the end (delta: 60.9 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. [2021-05-02 19:05:51,706 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 199.2 MB. Free memory is still 181.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 19:05:51,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.29 ms. Allocated memory is still 199.2 MB. Free memory was 164.6 MB in the beginning and 182.6 MB in the end (delta: -18.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. [2021-05-02 19:05:51,707 INFO L168 Benchmark]: Boogie Preprocessor took 19.56 ms. Allocated memory is still 199.2 MB. Free memory was 182.6 MB in the beginning and 181.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-02 19:05:51,707 INFO L168 Benchmark]: RCFGBuilder took 254.74 ms. Allocated memory is still 199.2 MB. Free memory was 181.2 MB in the beginning and 167.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-02 19:05:51,707 INFO L168 Benchmark]: IcfgTransformer took 26.83 ms. Allocated memory is still 199.2 MB. Free memory was 167.9 MB in the beginning and 166.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-02 19:05:51,708 INFO L168 Benchmark]: TraceAbstraction took 1354.32 ms. Allocated memory is still 199.2 MB. Free memory was 166.2 MB in the beginning and 103.9 MB in the end (delta: 62.2 MB). Peak memory consumption was 61.9 MB. Max. memory is 8.0 GB. [2021-05-02 19:05:51,709 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 199.2 MB. Free memory is still 181.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 189.29 ms. Allocated memory is still 199.2 MB. Free memory was 164.6 MB in the beginning and 182.6 MB in the end (delta: -18.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.56 ms. Allocated memory is still 199.2 MB. Free memory was 182.6 MB in the beginning and 181.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 254.74 ms. Allocated memory is still 199.2 MB. Free memory was 181.2 MB in the beginning and 167.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 26.83 ms. Allocated memory is still 199.2 MB. Free memory was 167.9 MB in the beginning and 166.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1354.32 ms. Allocated memory is still 199.2 MB. Free memory was 166.2 MB in the beginning and 103.9 MB in the end (delta: 62.2 MB). Peak memory consumption was 61.9 MB. 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, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1284.5ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 21.5ms, AutomataDifference: 344.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 31 SDslu, 45 SDs, 0 SdLazy, 65 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 63.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 349.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.1ms SsaConstructionTime, 87.8ms SatisfiabilityAnalysisTime, 409.1ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 SizeOfPredicates, 1 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 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...