/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/loops/nec40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:52:35,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:52:35,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:52:35,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 13:52:35,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:52:35,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:52:35,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:52:35,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:52:35,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:52:35,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:52:35,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:52:35,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:52:35,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:52:35,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:52:35,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:52:35,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:52:35,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:52:35,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:52:35,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:52:35,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:52:35,532 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 13:52:35,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:52:35,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:52:35,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:52:35,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:52:35,588 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:52:35,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:52:35,588 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:52:35,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:52:35,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:52:35,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:52:35,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:52:35,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:52:35,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:52:35,591 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:52:35,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:52:35,592 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:52:35,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:52:35,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:52:35,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:52:35,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:52:35,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:52:35,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:52:35,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:52:35,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:52:35,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:52:35,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:52:35,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:52:35,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:52:35,595 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:52:36,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:52:36,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:52:36,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:52:36,041 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:52:36,041 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:52:36,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec40.c [2021-02-23 13:52:36,129 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e15b48571/62b906a6269c4f02aef69d35f903fcf0/FLAG7cb7190ad [2021-02-23 13:52:36,746 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:52:36,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec40.c [2021-02-23 13:52:36,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e15b48571/62b906a6269c4f02aef69d35f903fcf0/FLAG7cb7190ad [2021-02-23 13:52:37,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e15b48571/62b906a6269c4f02aef69d35f903fcf0 [2021-02-23 13:52:37,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:52:37,133 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:52:37,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:52:37,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:52:37,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:52:37,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:52:37" (1/1) ... [2021-02-23 13:52:37,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b584c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37, skipping insertion in model container [2021-02-23 13:52:37,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:52:37" (1/1) ... [2021-02-23 13:52:37,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:52:37,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:52:37,404 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/nec40.c[317,330] [2021-02-23 13:52:37,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:52:37,448 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:52:37,462 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/nec40.c[317,330] [2021-02-23 13:52:37,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:52:37,495 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:52:37,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37 WrapperNode [2021-02-23 13:52:37,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:52:37,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:52:37,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:52:37,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:52:37,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37" (1/1) ... [2021-02-23 13:52:37,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37" (1/1) ... [2021-02-23 13:52:37,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37" (1/1) ... [2021-02-23 13:52:37,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37" (1/1) ... [2021-02-23 13:52:37,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37" (1/1) ... [2021-02-23 13:52:37,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37" (1/1) ... [2021-02-23 13:52:37,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37" (1/1) ... [2021-02-23 13:52:37,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:52:37,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:52:37,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:52:37,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:52:37,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37" (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 13:52:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:52:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:52:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:52:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 13:52:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:52:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:52:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:52:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:52:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:52:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 13:52:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 13:52:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:52:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:52:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:52:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:52:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:52:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:52:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:52:38,103 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:52:38,103 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 13:52:38,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:52:38 BoogieIcfgContainer [2021-02-23 13:52:38,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:52:38,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:52:38,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:52:38,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:52:38,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:52:37" (1/3) ... [2021-02-23 13:52:38,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7ae65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:52:38, skipping insertion in model container [2021-02-23 13:52:38,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:52:37" (2/3) ... [2021-02-23 13:52:38,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7ae65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:52:38, skipping insertion in model container [2021-02-23 13:52:38,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:52:38" (3/3) ... [2021-02-23 13:52:38,115 INFO L111 eAbstractionObserver]: Analyzing ICFG nec40.c [2021-02-23 13:52:38,122 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:52:38,128 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:52:38,148 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:52:38,177 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:52:38,177 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:52:38,177 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:52:38,177 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:52:38,177 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:52:38,178 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:52:38,178 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:52:38,178 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:52:38,195 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2021-02-23 13:52:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-23 13:52:38,201 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:52:38,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:52:38,203 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:52:38,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:52:38,209 INFO L82 PathProgramCache]: Analyzing trace with hash -723254197, now seen corresponding path program 1 times [2021-02-23 13:52:38,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:52:38,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030203386] [2021-02-23 13:52:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:52:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:38,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:38,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:38,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:38,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:38,670 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-23 13:52:38,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:52:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:38,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:38,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:52:38,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030203386] [2021-02-23 13:52:38,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:52:38,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 13:52:38,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752727104] [2021-02-23 13:52:38,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 13:52:38,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:52:38,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 13:52:38,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 13:52:38,769 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2021-02-23 13:52:38,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:52:38,867 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2021-02-23 13:52:38,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 13:52:38,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-02-23 13:52:38,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:52:38,878 INFO L225 Difference]: With dead ends: 38 [2021-02-23 13:52:38,878 INFO L226 Difference]: Without dead ends: 16 [2021-02-23 13:52:38,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 13:52:38,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-02-23 13:52:38,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-02-23 13:52:38,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-02-23 13:52:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-02-23 13:52:38,925 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2021-02-23 13:52:38,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:52:38,925 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-02-23 13:52:38,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 13:52:38,925 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-02-23 13:52:38,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-23 13:52:38,926 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:52:38,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:52:38,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:52:38,927 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:52:38,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:52:38,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1522809640, now seen corresponding path program 1 times [2021-02-23 13:52:38,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:52:38,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107764325] [2021-02-23 13:52:38,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:52:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:39,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:39,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:39,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:39,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:52:39,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:39,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:39,156 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-23 13:52:39,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:52:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:39,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:39,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:39,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:52:39,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107764325] [2021-02-23 13:52:39,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:52:39,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:52:39,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882393652] [2021-02-23 13:52:39,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:52:39,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:52:39,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:52:39,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:52:39,201 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2021-02-23 13:52:39,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:52:39,310 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-02-23 13:52:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 13:52:39,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2021-02-23 13:52:39,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:52:39,312 INFO L225 Difference]: With dead ends: 26 [2021-02-23 13:52:39,312 INFO L226 Difference]: Without dead ends: 18 [2021-02-23 13:52:39,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:52:39,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-02-23 13:52:39,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-02-23 13:52:39,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-02-23 13:52:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-02-23 13:52:39,321 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2021-02-23 13:52:39,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:52:39,322 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-02-23 13:52:39,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:52:39,322 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-02-23 13:52:39,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-23 13:52:39,323 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:52:39,323 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:52:39,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 13:52:39,323 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:52:39,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:52:39,324 INFO L82 PathProgramCache]: Analyzing trace with hash -521364141, now seen corresponding path program 1 times [2021-02-23 13:52:39,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:52:39,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757195723] [2021-02-23 13:52:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:52:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:39,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:39,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 13:52:39,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:39,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 13:52:39,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:39,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 13:52:39,457 WARN L141 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-02-23 13:52:39,460 WARN L147 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size 13 [2021-02-23 13:52:39,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:39,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:52:39,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:52:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:52:39,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:52:39,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 13:52:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:52:39,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757195723] [2021-02-23 13:52:39,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:52:39,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 13:52:39,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611872202] [2021-02-23 13:52:39,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 13:52:39,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:52:39,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 13:52:39,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 13:52:39,563 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2021-02-23 13:52:39,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:52:39,696 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-02-23 13:52:39,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 13:52:39,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-02-23 13:52:39,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:52:39,697 INFO L225 Difference]: With dead ends: 18 [2021-02-23 13:52:39,697 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 13:52:39,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-02-23 13:52:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 13:52:39,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 13:52:39,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 13:52:39,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 13:52:39,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-02-23 13:52:39,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:52:39,700 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 13:52:39,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 13:52:39,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 13:52:39,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 13:52:39,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 13:52:39,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 13:52:39,834 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 13:52:39,834 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 13:52:39,835 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 13:52:39,835 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:52:39,835 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~j~0 |old(~j~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#memory_int| |old(#memory_int)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#y~0.offset| |old(~#y~0.offset)|) (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#y~0.base| |old(~#y~0.base)|)) [2021-02-23 13:52:39,835 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:52:39,836 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:52:39,836 INFO L185 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (<= ~i~0 0)) [2021-02-23 13:52:39,836 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 13:52:39,836 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:52:39,836 INFO L189 CegarLoopUtils]: For program point L27(lines 27 28) no Hoare annotation was computed. [2021-02-23 13:52:39,836 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 16 31) no Hoare annotation was computed. [2021-02-23 13:52:39,837 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 16 31) no Hoare annotation was computed. [2021-02-23 13:52:39,837 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 16 31) the Hoare annotation is: (or (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (not (<= |old(~i~0)| 0)) (and (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|))) [2021-02-23 13:52:39,837 INFO L185 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: (or (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (not (<= |old(~i~0)| 0))) [2021-02-23 13:52:39,837 INFO L189 CegarLoopUtils]: For program point L26(lines 26 28) no Hoare annotation was computed. [2021-02-23 13:52:39,837 INFO L189 CegarLoopUtils]: For program point L26-1(lines 26 28) no Hoare annotation was computed. [2021-02-23 13:52:39,838 INFO L189 CegarLoopUtils]: For program point L20-1(lines 20 23) no Hoare annotation was computed. [2021-02-23 13:52:39,838 INFO L185 CegarLoopUtils]: At program point L20-3(lines 20 23) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (and (= (select |#memory_int| |~#x~0.base|) .cse0) (<= ~i~0 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (<= |old(~i~0)| 0)))) [2021-02-23 13:52:39,838 INFO L189 CegarLoopUtils]: For program point L20-4(lines 20 23) no Hoare annotation was computed. [2021-02-23 13:52:39,838 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2021-02-23 13:52:39,838 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2021-02-23 13:52:39,838 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-02-23 13:52:39,839 INFO L189 CegarLoopUtils]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-02-23 13:52:39,839 INFO L189 CegarLoopUtils]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2021-02-23 13:52:39,839 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-02-23 13:52:39,847 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:558) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:256) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:213) 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) [2021-02-23 13:52:39,851 INFO L168 Benchmark]: Toolchain (without parser) took 2730.52 ms. Allocated memory is still 163.6 MB. Free memory was 139.2 MB in the beginning and 110.6 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:39,852 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 163.6 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:52:39,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.33 ms. Allocated memory is still 163.6 MB. Free memory was 138.1 MB in the beginning and 128.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:39,853 INFO L168 Benchmark]: Boogie Preprocessor took 41.23 ms. Allocated memory is still 163.6 MB. Free memory was 128.5 MB in the beginning and 127.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:39,854 INFO L168 Benchmark]: RCFGBuilder took 566.64 ms. Allocated memory is still 163.6 MB. Free memory was 126.9 MB in the beginning and 145.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:39,855 INFO L168 Benchmark]: TraceAbstraction took 1742.22 ms. Allocated memory is still 163.6 MB. Free memory was 144.3 MB in the beginning and 110.6 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 8.0 GB. [2021-02-23 13:52:39,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 163.6 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 360.33 ms. Allocated memory is still 163.6 MB. Free memory was 138.1 MB in the beginning and 128.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.23 ms. Allocated memory is still 163.6 MB. Free memory was 128.5 MB in the beginning and 127.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 566.64 ms. Allocated memory is still 163.6 MB. Free memory was 126.9 MB in the beginning and 145.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1742.22 ms. Allocated memory is still 163.6 MB. Free memory was 144.3 MB in the beginning and 110.6 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...