/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/n.c40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:58:55,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:58:55,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:58:55,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:58:55,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:58:55,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:58:55,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:58:55,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:58:55,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:58:55,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:58:55,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:58:55,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:58:55,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:58:55,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:58:55,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:58:55,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:58:55,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:58:55,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:58:55,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:58:55,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:58:55,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:58:55,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:58:55,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:58:55,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:58:55,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 17:58:55,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:58:55,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:58:55,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:58:55,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:58:55,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:58:55,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:58:55,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:58:55,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:58:55,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:58:55,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:58:55,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:58:55,596 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 [2021-02-19 17:58:55,651 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:58:55,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:58:55,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:58:55,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:58:55,656 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:58:55,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:58:55,656 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:58:55,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:58:55,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:58:55,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:58:55,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:58:55,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:58:55,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:58:55,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:58:55,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:58:55,659 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:58:55,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:58:55,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:58:55,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:58:55,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:58:55,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:58:55,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:58:55,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:58:55,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:58:55,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:58:55,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:58:55,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:58:55,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:58:55,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:58:56,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:58:56,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:58:56,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:58:56,061 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:58:56,061 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:58:56,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40.c [2021-02-19 17:58:56,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9aa9c7602/a9c8c81177a841ef87c8523f192c1e98/FLAG1e54a9a84 [2021-02-19 17:58:56,727 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:58:56,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c [2021-02-19 17:58:56,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9aa9c7602/a9c8c81177a841ef87c8523f192c1e98/FLAG1e54a9a84 [2021-02-19 17:58:57,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9aa9c7602/a9c8c81177a841ef87c8523f192c1e98 [2021-02-19 17:58:57,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:58:57,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:58:57,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:58:57,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:58:57,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:58:57,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:58:57" (1/1) ... [2021-02-19 17:58:57,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e157cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57, skipping insertion in model container [2021-02-19 17:58:57,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:58:57" (1/1) ... [2021-02-19 17:58:57,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:58:57,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:58:57,315 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/n.c40.c[498,511] [2021-02-19 17:58:57,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:58:57,335 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:58:57,358 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/n.c40.c[498,511] [2021-02-19 17:58:57,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:58:57,375 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:58:57,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57 WrapperNode [2021-02-19 17:58:57,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:58:57,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:58:57,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:58:57,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:58:57,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57" (1/1) ... [2021-02-19 17:58:57,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57" (1/1) ... [2021-02-19 17:58:57,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57" (1/1) ... [2021-02-19 17:58:57,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57" (1/1) ... [2021-02-19 17:58:57,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57" (1/1) ... [2021-02-19 17:58:57,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57" (1/1) ... [2021-02-19 17:58:57,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57" (1/1) ... [2021-02-19 17:58:57,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:58:57,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:58:57,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:58:57,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:58:57,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57" (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 [2021-02-19 17:58:57,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:58:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:58:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:58:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:58:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:58:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:58:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:58:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:58:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:58:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:58:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:58:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:58:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:58:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:58:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:58:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:58:57,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:58:57,726 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-19 17:58:57,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:58:57 BoogieIcfgContainer [2021-02-19 17:58:57,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:58:57,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:58:57,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:58:57,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:58:57,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:58:57" (1/3) ... [2021-02-19 17:58:57,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11834919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:58:57, skipping insertion in model container [2021-02-19 17:58:57,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:58:57" (2/3) ... [2021-02-19 17:58:57,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11834919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:58:57, skipping insertion in model container [2021-02-19 17:58:57,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:58:57" (3/3) ... [2021-02-19 17:58:57,737 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c40.c [2021-02-19 17:58:57,744 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:58:57,750 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:58:57,770 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:58:57,867 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:58:57,868 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:58:57,868 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:58:57,868 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:58:57,868 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:58:57,868 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:58:57,868 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:58:57,868 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:58:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2021-02-19 17:58:57,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-02-19 17:58:57,896 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:58:57,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:58:57,897 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:58:57,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:58:57,909 INFO L82 PathProgramCache]: Analyzing trace with hash 486483065, now seen corresponding path program 1 times [2021-02-19 17:58:57,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:58:57,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509929151] [2021-02-19 17:58:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:58:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:58:58,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:58,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:58:58,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:58,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:58:58,421 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-19 17:58:58,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:58:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:58:58,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:58,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:58:58,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:58:58,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509929151] [2021-02-19 17:58:58,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:58:58,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:58:58,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109568603] [2021-02-19 17:58:58,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:58:58,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:58:58,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:58:58,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:58:58,509 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2021-02-19 17:58:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:58:58,612 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2021-02-19 17:58:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:58:58,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2021-02-19 17:58:58,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:58:58,629 INFO L225 Difference]: With dead ends: 28 [2021-02-19 17:58:58,629 INFO L226 Difference]: Without dead ends: 13 [2021-02-19 17:58:58,635 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 [2021-02-19 17:58:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-02-19 17:58:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-02-19 17:58:58,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-02-19 17:58:58,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-02-19 17:58:58,688 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2021-02-19 17:58:58,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:58:58,689 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-02-19 17:58:58,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:58:58,689 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-02-19 17:58:58,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-02-19 17:58:58,690 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:58:58,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:58:58,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:58:58,691 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:58:58,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:58:58,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1990035655, now seen corresponding path program 1 times [2021-02-19 17:58:58,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:58:58,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387949659] [2021-02-19 17:58:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:58:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:58:58,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:58,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:58:58,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:58,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:58:58,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:58,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:58:58,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:58:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:58:58,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:58,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:58:58,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:58:58,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387949659] [2021-02-19 17:58:58,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:58:58,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:58:58,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192877962] [2021-02-19 17:58:58,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:58:58,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:58:58,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:58:58,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:58:58,943 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2021-02-19 17:58:59,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:58:59,066 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-02-19 17:58:59,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:58:59,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-02-19 17:58:59,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:58:59,069 INFO L225 Difference]: With dead ends: 20 [2021-02-19 17:58:59,069 INFO L226 Difference]: Without dead ends: 15 [2021-02-19 17:58:59,070 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 [2021-02-19 17:58:59,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-02-19 17:58:59,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-02-19 17:58:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-02-19 17:58:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-02-19 17:58:59,077 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2021-02-19 17:58:59,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:58:59,078 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-02-19 17:58:59,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:58:59,078 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-02-19 17:58:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-19 17:58:59,079 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:58:59,079 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:58:59,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:58:59,079 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:58:59,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:58:59,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1622298932, now seen corresponding path program 1 times [2021-02-19 17:58:59,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:58:59,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855933501] [2021-02-19 17:58:59,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:58:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:58:59,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:59,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-19 17:58:59,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:59,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-19 17:58:59,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:59,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-19 17:58:59,173 WARN L141 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-02-19 17:58:59,175 WARN L147 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size 17 [2021-02-19 17:58:59,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:58:59,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:58:59,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:58:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:58:59,261 WARN L141 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-02-19 17:58:59,262 WARN L147 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size 11 [2021-02-19 17:58:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:58:59,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855933501] [2021-02-19 17:58:59,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:58:59,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 17:58:59,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260007595] [2021-02-19 17:58:59,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 17:58:59,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:58:59,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 17:58:59,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 17:58:59,268 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2021-02-19 17:58:59,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:58:59,379 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-02-19 17:58:59,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 17:58:59,379 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2021-02-19 17:58:59,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:58:59,380 INFO L225 Difference]: With dead ends: 15 [2021-02-19 17:58:59,380 INFO L226 Difference]: Without dead ends: 0 [2021-02-19 17:58:59,381 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 [2021-02-19 17:58:59,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-19 17:58:59,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-19 17:58:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-19 17:58:59,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-19 17:58:59,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-02-19 17:58:59,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:58:59,382 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-19 17:58:59,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 17:58:59,383 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-19 17:58:59,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-19 17:58:59,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:58:59,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-19 17:58:59,531 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-19 17:58:59,531 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-19 17:58:59,531 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-19 17:58:59,532 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-19 17:58:59,532 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)|)) [2021-02-19 17:58:59,532 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-19 17:58:59,532 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-19 17:58:59,533 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)) (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0)) [2021-02-19 17:58:59,533 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-19 17:58:59,533 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-19 17:58:59,533 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 10 25) no Hoare annotation was computed. [2021-02-19 17:58:59,533 INFO L189 CegarLoopUtils]: For program point L21(lines 21 22) no Hoare annotation was computed. [2021-02-19 17:58:59,533 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 10 25) no Hoare annotation was computed. [2021-02-19 17:58:59,534 INFO L189 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2021-02-19 17:58:59,534 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 10 25) the Hoare annotation is: (or (= |~#x~0.base| |~#y~0.base|) (not (= |old(~i~0)| 0)) (and (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|) (= ~i~0 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2021-02-19 17:58:59,534 INFO L189 CegarLoopUtils]: For program point L22(line 22) no Hoare annotation was computed. [2021-02-19 17:58:59,534 INFO L189 CegarLoopUtils]: For program point L20(lines 20 22) no Hoare annotation was computed. [2021-02-19 17:58:59,534 INFO L189 CegarLoopUtils]: For program point L20-1(lines 20 22) no Hoare annotation was computed. [2021-02-19 17:58:59,535 INFO L189 CegarLoopUtils]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2021-02-19 17:58:59,535 INFO L185 CegarLoopUtils]: At program point L14-3(lines 14 17) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (= |~#x~0.base| |~#y~0.base|) (not (= |old(~i~0)| 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2021-02-19 17:58:59,535 INFO L189 CegarLoopUtils]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2021-02-19 17:58:59,543 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) [2021-02-19 17:58:59,546 INFO L168 Benchmark]: Toolchain (without parser) took 2448.20 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 128.9 MB in the beginning and 131.1 MB in the end (delta: -2.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:58:59,547 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:58:59,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.24 ms. Allocated memory is still 154.1 MB. Free memory was 127.8 MB in the beginning and 118.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:58:59,548 INFO L168 Benchmark]: Boogie Preprocessor took 36.88 ms. Allocated memory is still 154.1 MB. Free memory was 118.4 MB in the beginning and 116.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:58:59,549 INFO L168 Benchmark]: RCFGBuilder took 313.74 ms. Allocated memory is still 154.1 MB. Free memory was 116.7 MB in the beginning and 102.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-19 17:58:59,550 INFO L168 Benchmark]: TraceAbstraction took 1814.44 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 102.0 MB in the beginning and 131.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:58:59,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 265.24 ms. Allocated memory is still 154.1 MB. Free memory was 127.8 MB in the beginning and 118.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.88 ms. Allocated memory is still 154.1 MB. Free memory was 118.4 MB in the beginning and 116.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 313.74 ms. Allocated memory is still 154.1 MB. Free memory was 116.7 MB in the beginning and 102.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1814.44 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 102.0 MB in the beginning and 131.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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...