/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 03:00:04,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 03:00:04,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 03:00:04,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 03:00:04,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 03:00:04,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 03:00:04,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 03:00:04,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 03:00:04,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 03:00:04,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 03:00:04,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 03:00:04,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 03:00:04,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 03:00:04,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 03:00:04,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 03:00:04,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 03:00:04,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 03:00:04,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 03:00:04,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 03:00:04,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 03:00:04,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-05-06 03:00:04,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 03:00:04,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 03:00:04,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-06 03:00:04,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-06 03:00:04,582 INFO L138 SettingsManager]: * Use SBE=true [2021-05-06 03:00:04,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 03:00:04,582 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 03:00:04,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 03:00:04,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 03:00:04,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 03:00:04,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 03:00:04,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 03:00:04,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 03:00:04,583 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 03:00:04,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 03:00:04,583 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 03:00:04,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 03:00:04,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 03:00:04,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 03:00:04,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 03:00:04,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 03:00:04,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 03:00:04,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-06 03:00:04,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-06 03:00:04,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 03:00:04,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-06 03:00:04,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 03:00:04,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-05-06 03:00:04,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 03:00:04,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 03:00:04,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 03:00:04,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 03:00:04,817 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 03:00:04,817 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 03:00:04,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_valuebound1.c [2021-05-06 03:00:04,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4342d9e/b490bc0c37b84f378af78acaf05d9d1e/FLAG97caaf228 [2021-05-06 03:00:05,239 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 03:00:05,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_valuebound1.c [2021-05-06 03:00:05,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4342d9e/b490bc0c37b84f378af78acaf05d9d1e/FLAG97caaf228 [2021-05-06 03:00:05,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4342d9e/b490bc0c37b84f378af78acaf05d9d1e [2021-05-06 03:00:05,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 03:00:05,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 03:00:05,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 03:00:05,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 03:00:05,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 03:00:05,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 03:00:05" (1/1) ... [2021-05-06 03:00:05,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@249be7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05, skipping insertion in model container [2021-05-06 03:00:05,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 03:00:05" (1/1) ... [2021-05-06 03:00:05,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 03:00:05,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 03:00:05,801 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/geo3-ll_valuebound1.c[525,538] [2021-05-06 03:00:05,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 03:00:05,814 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 03:00:05,866 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/geo3-ll_valuebound1.c[525,538] [2021-05-06 03:00:05,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 03:00:05,878 INFO L208 MainTranslator]: Completed translation [2021-05-06 03:00:05,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05 WrapperNode [2021-05-06 03:00:05,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 03:00:05,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 03:00:05,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 03:00:05,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 03:00:05,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05" (1/1) ... [2021-05-06 03:00:05,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05" (1/1) ... [2021-05-06 03:00:05,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05" (1/1) ... [2021-05-06 03:00:05,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05" (1/1) ... [2021-05-06 03:00:05,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05" (1/1) ... [2021-05-06 03:00:05,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05" (1/1) ... [2021-05-06 03:00:05,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05" (1/1) ... [2021-05-06 03:00:05,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 03:00:05,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 03:00:05,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 03:00:05,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 03:00:05,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05" (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 [2021-05-06 03:00:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 03:00:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 03:00:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 03:00:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 03:00:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 03:00:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 03:00:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 03:00:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 03:00:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 03:00:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 03:00:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 03:00:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 03:00:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 03:00:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 03:00:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 03:00:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 03:00:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 03:00:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 03:00:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 03:00:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 03:00:06,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 03:00:06,216 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 03:00:06,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 03:00:06 BoogieIcfgContainer [2021-05-06 03:00:06,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 03:00:06,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 03:00:06,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 03:00:06,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 03:00:06,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 03:00:05" (1/3) ... [2021-05-06 03:00:06,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5372814e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 03:00:06, skipping insertion in model container [2021-05-06 03:00:06,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:00:05" (2/3) ... [2021-05-06 03:00:06,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5372814e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 03:00:06, skipping insertion in model container [2021-05-06 03:00:06,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 03:00:06" (3/3) ... [2021-05-06 03:00:06,222 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound1.c [2021-05-06 03:00:06,225 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-06 03:00:06,228 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 03:00:06,248 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 03:00:06,271 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 03:00:06,271 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 03:00:06,271 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-06 03:00:06,271 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 03:00:06,271 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 03:00:06,271 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 03:00:06,271 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 03:00:06,272 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 03:00:06,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-06 03:00:06,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-06 03:00:06,294 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 03:00:06,294 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 03:00:06,295 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 03:00:06,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 03:00:06,299 INFO L82 PathProgramCache]: Analyzing trace with hash -779299010, now seen corresponding path program 1 times [2021-05-06 03:00:06,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 03:00:06,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13448397] [2021-05-06 03:00:06,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 03:00:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 03:00:06,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 03:00:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 03:00:06,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-06 03:00:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 03:00:06,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-06 03:00:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 03:00:06,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-05-06 03:00:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 03:00:06,522 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-06 03:00:06,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 03:00:06,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13448397] [2021-05-06 03:00:06,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13448397] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 03:00:06,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 03:00:06,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 03:00:06,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795353916] [2021-05-06 03:00:06,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 03:00:06,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 03:00:06,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 03:00:06,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 03:00:06,537 INFO L87 Difference]: Start difference. First operand has 31 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-06 03:00:06,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 03:00:06,620 INFO L93 Difference]: Finished difference Result 55 states and 73 transitions. [2021-05-06 03:00:06,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 03:00:06,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-05-06 03:00:06,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 03:00:06,627 INFO L225 Difference]: With dead ends: 55 [2021-05-06 03:00:06,627 INFO L226 Difference]: Without dead ends: 26 [2021-05-06 03:00:06,629 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 03:00:06,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-05-06 03:00:06,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-05-06 03:00:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-06 03:00:06,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2021-05-06 03:00:06,653 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 29 [2021-05-06 03:00:06,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 03:00:06,653 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2021-05-06 03:00:06,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-06 03:00:06,654 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2021-05-06 03:00:06,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-06 03:00:06,654 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 03:00:06,655 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 03:00:06,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 03:00:06,655 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 03:00:06,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 03:00:06,655 INFO L82 PathProgramCache]: Analyzing trace with hash -963850242, now seen corresponding path program 1 times [2021-05-06 03:00:06,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 03:00:06,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219246573] [2021-05-06 03:00:06,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 03:00:06,669 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 03:00:06,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451247468] [2021-05-06 03:00:06,670 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 [2021-05-06 03:00:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 03:00:06,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-06 03:00:06,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 03:00:06,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:06,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:06,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:06,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:06,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:06,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:06,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:06,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:06,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-05-06 03:00:06,935 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 03:00:06,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219246573] [2021-05-06 03:00:06,936 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 03:00:06,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451247468] [2021-05-06 03:00:06,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451247468] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 03:00:06,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-06 03:00:06,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-05-06 03:00:06,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530083107] [2021-05-06 03:00:06,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-06 03:00:06,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 03:00:06,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-06 03:00:06,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-05-06 03:00:06,938 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-06 03:00:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 03:00:07,036 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2021-05-06 03:00:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 03:00:07,037 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2021-05-06 03:00:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 03:00:07,038 INFO L225 Difference]: With dead ends: 36 [2021-05-06 03:00:07,038 INFO L226 Difference]: Without dead ends: 33 [2021-05-06 03:00:07,039 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 62.6ms TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-05-06 03:00:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-06 03:00:07,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-05-06 03:00:07,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-06 03:00:07,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2021-05-06 03:00:07,046 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 29 [2021-05-06 03:00:07,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 03:00:07,047 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2021-05-06 03:00:07,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-06 03:00:07,047 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2021-05-06 03:00:07,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-06 03:00:07,048 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 03:00:07,048 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 03:00:07,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-06 03:00:07,265 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 03:00:07,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 03:00:07,266 INFO L82 PathProgramCache]: Analyzing trace with hash -425626518, now seen corresponding path program 1 times [2021-05-06 03:00:07,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 03:00:07,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403692468] [2021-05-06 03:00:07,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 03:00:07,280 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 03:00:07,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890846839] [2021-05-06 03:00:07,280 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 [2021-05-06 03:00:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 03:00:07,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-06 03:00:07,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 03:00:07,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:07,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:07,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:07,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:07,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:07,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:07,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 03:00:07,445 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-05-06 03:00:07,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 03:00:07,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403692468] [2021-05-06 03:00:07,445 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 03:00:07,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890846839] [2021-05-06 03:00:07,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890846839] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 03:00:07,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 03:00:07,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-06 03:00:07,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692236769] [2021-05-06 03:00:07,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-06 03:00:07,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 03:00:07,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-06 03:00:07,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-06 03:00:07,447 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-06 03:00:07,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 03:00:07,482 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-05-06 03:00:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 03:00:07,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2021-05-06 03:00:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 03:00:07,483 INFO L225 Difference]: With dead ends: 33 [2021-05-06 03:00:07,483 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 03:00:07,484 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 24.0ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-05-06 03:00:07,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 03:00:07,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 03:00:07,484 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) [2021-05-06 03:00:07,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 03:00:07,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-05-06 03:00:07,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 03:00:07,485 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 03:00:07,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-06 03:00:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 03:00:07,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 03:00:07,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 03:00:07,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-06 03:00:07,920 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 8) no Hoare annotation was computed. [2021-05-06 03:00:07,920 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 8) no Hoare annotation was computed. [2021-05-06 03:00:07,920 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 8) no Hoare annotation was computed. [2021-05-06 03:00:07,920 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-05-06 03:00:07,920 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-05-06 03:00:07,920 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-05-06 03:00:07,920 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-05-06 03:00:07,920 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-06 03:00:07,921 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-06 03:00:07,921 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-05-06 03:00:07,921 INFO L201 CegarLoopUtils]: At program point assume_abort_if_notENTRY(lines 11 13) the Hoare annotation is: true [2021-05-06 03:00:07,921 INFO L198 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2021-05-06 03:00:07,921 INFO L198 CegarLoopUtils]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2021-05-06 03:00:07,921 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2021-05-06 03:00:07,921 INFO L194 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (and (<= 0 main_~a~0) (<= main_~z~0 1) (<= main_~a~0 1) (<= 0 main_~z~0)) [2021-05-06 03:00:07,921 INFO L198 CegarLoopUtils]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-05-06 03:00:07,921 INFO L194 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: (and (<= main_~z~0 1) (<= 0 main_~z~0)) [2021-05-06 03:00:07,921 INFO L198 CegarLoopUtils]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-05-06 03:00:07,921 INFO L201 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: true [2021-05-06 03:00:07,921 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 21 48) no Hoare annotation was computed. [2021-05-06 03:00:07,921 INFO L198 CegarLoopUtils]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-05-06 03:00:07,922 INFO L198 CegarLoopUtils]: For program point L46(line 46) no Hoare annotation was computed. [2021-05-06 03:00:07,922 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 21 48) no Hoare annotation was computed. [2021-05-06 03:00:07,922 INFO L194 CegarLoopUtils]: At program point L36-2(lines 36 45) the Hoare annotation is: (and (<= 1 main_~c~0) (<= 0 main_~a~0) (<= main_~k~0 1) (= main_~a~0 main_~x~0) (<= main_~z~0 1) (<= main_~a~0 1) (<= 0 main_~k~0) (= main_~y~0 1) (= (* main_~z~0 main_~a~0) main_~az~0) (<= 0 main_~z~0)) [2021-05-06 03:00:07,922 INFO L194 CegarLoopUtils]: At program point L36-3(lines 36 45) the Hoare annotation is: (and (<= 0 main_~a~0) (= main_~a~0 main_~x~0) (<= main_~z~0 1) (<= main_~a~0 1) (= main_~y~0 1) (= (* main_~z~0 main_~a~0) main_~az~0) (<= 0 main_~z~0)) [2021-05-06 03:00:07,922 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 21 48) the Hoare annotation is: true [2021-05-06 03:00:07,922 INFO L194 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: (and (<= 1 main_~c~0) (<= 0 main_~a~0) (<= main_~k~0 1) (= main_~a~0 main_~x~0) (<= main_~z~0 1) (<= main_~a~0 1) (<= 0 main_~k~0) (= main_~y~0 1) (= (* main_~z~0 main_~a~0) main_~az~0) (<= 0 main_~z~0)) [2021-05-06 03:00:07,922 INFO L198 CegarLoopUtils]: For program point L37-1(lines 36 45) no Hoare annotation was computed. [2021-05-06 03:00:07,922 INFO L198 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-05-06 03:00:07,922 INFO L198 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-05-06 03:00:07,922 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true [2021-05-06 03:00:07,922 INFO L198 CegarLoopUtils]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2021-05-06 03:00:07,922 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2021-05-06 03:00:07,923 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-05-06 03:00:07,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 03:00:07 BoogieIcfgContainer [2021-05-06 03:00:07,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 03:00:07,933 INFO L168 Benchmark]: Toolchain (without parser) took 2245.36 ms. Allocated memory was 181.4 MB in the beginning and 232.8 MB in the end (delta: 51.4 MB). Free memory was 144.9 MB in the beginning and 119.5 MB in the end (delta: 25.4 MB). Peak memory consumption was 77.5 MB. Max. memory is 8.0 GB. [2021-05-06 03:00:07,933 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 181.4 MB. Free memory is still 161.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 03:00:07,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.12 ms. Allocated memory is still 181.4 MB. Free memory was 144.8 MB in the beginning and 163.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 8.0 GB. [2021-05-06 03:00:07,934 INFO L168 Benchmark]: Boogie Preprocessor took 33.40 ms. Allocated memory is still 181.4 MB. Free memory was 163.7 MB in the beginning and 162.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-06 03:00:07,934 INFO L168 Benchmark]: RCFGBuilder took 303.41 ms. Allocated memory is still 181.4 MB. Free memory was 162.1 MB in the beginning and 146.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-06 03:00:07,934 INFO L168 Benchmark]: TraceAbstraction took 1714.44 ms. Allocated memory was 181.4 MB in the beginning and 232.8 MB in the end (delta: 51.4 MB). Free memory was 145.8 MB in the beginning and 119.5 MB in the end (delta: 26.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 8.0 GB. [2021-05-06 03:00:07,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 181.4 MB. Free memory is still 161.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 190.12 ms. Allocated memory is still 181.4 MB. Free memory was 144.8 MB in the beginning and 163.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.40 ms. Allocated memory is still 181.4 MB. Free memory was 163.7 MB in the beginning and 162.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 303.41 ms. Allocated memory is still 181.4 MB. Free memory was 162.1 MB in the beginning and 146.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1714.44 ms. Allocated memory was 181.4 MB in the beginning and 232.8 MB in the end (delta: 51.4 MB). Free memory was 145.8 MB in the beginning and 119.5 MB in the end (delta: 26.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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 6 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1435.3ms, OverallIterations: 3, TraceHistogramMax: 3, EmptinessCheckTime: 7.9ms, AutomataDifference: 239.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 214.8ms, InitialAbstractionConstructionTime: 16.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 69 SDtfs, 40 SDslu, 153 SDs, 0 SdLazy, 99 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 123.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 129.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 12 LocationsWithAnnotation, 21 PreInvPairs, 26 NumberOfFragments, 147 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 37.5ms HoareSimplificationTime, 12 FomulaSimplificationsInter, 278 FormulaSimplificationTreeSizeReductionInter, 170.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 30.4ms SsaConstructionTime, 73.2ms SatisfiabilityAnalysisTime, 445.6ms InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 276 SizeOfPredicates, 5 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 34/40 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 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((1 <= c && 0 <= a) && k <= 1) && a == x) && z <= 1) && a <= 1) && 0 <= k) && y == 1) && z * a == az) && 0 <= z RESULT: Ultimate proved your program to be correct! Received shutdown request...