/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/inv_square-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:11:32,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:11:32,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:11:32,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 13:11:32,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:11:32,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:11:32,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:11:32,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:11:32,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:11:32,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:11:32,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:11:32,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:11:32,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:11:32,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:11:32,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:11:32,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:11:32,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:11:32,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:11:32,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:11:32,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:11:32,237 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 [2021-02-23 13:11:32,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:11:32,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:11:32,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:11:32,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:11:32,297 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:11:32,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:11:32,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:11:32,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:11:32,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:11:32,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:11:32,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:11:32,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:11:32,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:11:32,300 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:11:32,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:11:32,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:11:32,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:11:32,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:11:32,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:11:32,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:11:32,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:11:32,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:11:32,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:11:32,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:11:32,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:11:32,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:11:32,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:11:32,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:11:32,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:11:32,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:11:32,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:11:32,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:11:32,732 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:11:32,733 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:11:32,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_square-1.c [2021-02-23 13:11:32,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/069fb8a6b/047840c49cc64e65a1f13a77c6533c7a/FLAG8d002c44d [2021-02-23 13:11:33,431 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:11:33,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_square-1.c [2021-02-23 13:11:33,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/069fb8a6b/047840c49cc64e65a1f13a77c6533c7a/FLAG8d002c44d [2021-02-23 13:11:33,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/069fb8a6b/047840c49cc64e65a1f13a77c6533c7a [2021-02-23 13:11:33,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:11:33,479 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:11:33,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:11:33,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:11:33,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:11:33,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:11:33" (1/1) ... [2021-02-23 13:11:33,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5de652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33, skipping insertion in model container [2021-02-23 13:11:33,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:11:33" (1/1) ... [2021-02-23 13:11:33,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:11:33,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:11:33,663 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_square-1.c[487,500] [2021-02-23 13:11:33,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:11:33,687 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:11:33,703 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_square-1.c[487,500] [2021-02-23 13:11:33,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:11:33,724 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:11:33,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33 WrapperNode [2021-02-23 13:11:33,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:11:33,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:11:33,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:11:33,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:11:33,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33" (1/1) ... [2021-02-23 13:11:33,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33" (1/1) ... [2021-02-23 13:11:33,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33" (1/1) ... [2021-02-23 13:11:33,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33" (1/1) ... [2021-02-23 13:11:33,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33" (1/1) ... [2021-02-23 13:11:33,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33" (1/1) ... [2021-02-23 13:11:33,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33" (1/1) ... [2021-02-23 13:11:33,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:11:33,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:11:33,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:11:33,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:11:33,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33" (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 [2021-02-23 13:11:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:11:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:11:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:11:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-23 13:11:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 13:11:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:11:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:11:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:11:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:11:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:11:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2021-02-23 13:11:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-23 13:11:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 13:11:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:11:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:11:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:11:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:11:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:11:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:11:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:11:34,204 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:11:34,204 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 13:11:34,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:11:34 BoogieIcfgContainer [2021-02-23 13:11:34,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:11:34,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:11:34,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:11:34,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:11:34,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:11:33" (1/3) ... [2021-02-23 13:11:34,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387054ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:11:34, skipping insertion in model container [2021-02-23 13:11:34,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:11:33" (2/3) ... [2021-02-23 13:11:34,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387054ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:11:34, skipping insertion in model container [2021-02-23 13:11:34,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:11:34" (3/3) ... [2021-02-23 13:11:34,253 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_square-1.c [2021-02-23 13:11:34,261 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:11:34,266 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:11:34,299 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:11:34,328 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:11:34,328 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:11:34,329 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:11:34,329 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:11:34,329 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:11:34,329 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:11:34,329 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:11:34,329 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:11:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2021-02-23 13:11:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-23 13:11:34,356 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:11:34,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:11:34,357 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:11:34,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:11:34,364 INFO L82 PathProgramCache]: Analyzing trace with hash 472679035, now seen corresponding path program 1 times [2021-02-23 13:11:34,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:11:34,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133532313] [2021-02-23 13:11:34,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:11:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:11:34,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:11:34,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:11:34,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:11:34,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:11:34,724 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-23 13:11:34,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:11:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:11:34,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:11:34,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:11:34,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 13:11:34,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:11:34,793 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:237) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:314) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:208) ... 32 more [2021-02-23 13:11:34,803 INFO L168 Benchmark]: Toolchain (without parser) took 1332.01 ms. Allocated memory is still 157.3 MB. Free memory was 132.2 MB in the beginning and 122.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:11:34,804 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 157.3 MB. Free memory was 130.0 MB in the beginning and 129.8 MB in the end (delta: 162.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:11:34,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.14 ms. Allocated memory is still 157.3 MB. Free memory was 131.2 MB in the beginning and 121.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:11:34,808 INFO L168 Benchmark]: Boogie Preprocessor took 40.21 ms. Allocated memory is still 157.3 MB. Free memory was 121.0 MB in the beginning and 119.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:11:34,810 INFO L168 Benchmark]: RCFGBuilder took 442.88 ms. Allocated memory is still 157.3 MB. Free memory was 119.5 MB in the beginning and 106.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:11:34,812 INFO L168 Benchmark]: TraceAbstraction took 583.58 ms. Allocated memory is still 157.3 MB. Free memory was 106.0 MB in the beginning and 122.6 MB in the end (delta: -16.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:11:34,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 157.3 MB. Free memory was 130.0 MB in the beginning and 129.8 MB in the end (delta: 162.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 242.14 ms. Allocated memory is still 157.3 MB. Free memory was 131.2 MB in the beginning and 121.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.21 ms. Allocated memory is still 157.3 MB. Free memory was 121.0 MB in the beginning and 119.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 442.88 ms. Allocated memory is still 157.3 MB. Free memory was 119.5 MB in the beginning and 106.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 583.58 ms. Allocated memory is still 157.3 MB. Free memory was 106.0 MB in the beginning and 122.6 MB in the end (delta: -16.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:237) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...