/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/loop-lit/ddlm2013.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:29:09,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:29:09,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:29:09,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:29:09,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:29:09,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:29:09,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:29:09,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:29:09,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:29:09,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:29:09,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:29:09,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:29:09,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:29:09,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:29:09,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:29:09,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:29:09,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:29:09,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:29:09,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:29:09,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:29:09,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:29:09,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:29:09,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:29:09,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:29:09,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:29:09,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:29:09,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:29:09,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:29:09,839 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 [2020-07-10 15:29:09,875 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:29:09,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:29:09,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:29:09,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:29:09,880 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:29:09,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:29:09,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:29:09,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:29:09,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:29:09,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:29:09,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:29:09,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:29:09,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:29:09,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:29:09,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:29:09,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:29:09,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:29:09,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:29:09,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:29:09,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:29:09,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:29:09,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:29:09,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:29:09,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:29:09,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:29:09,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:29:09,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:29:09,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:29:09,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:29:09,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:29:10,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:29:10,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:29:10,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:29:10,338 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:29:10,338 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:29:10,340 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/ddlm2013.i [2020-07-10 15:29:10,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2623cfcc/1f88a4b12a9f4da883863f49a7948d58/FLAG901be815f [2020-07-10 15:29:10,922 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:29:10,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/ddlm2013.i [2020-07-10 15:29:10,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2623cfcc/1f88a4b12a9f4da883863f49a7948d58/FLAG901be815f [2020-07-10 15:29:11,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2623cfcc/1f88a4b12a9f4da883863f49a7948d58 [2020-07-10 15:29:11,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:29:11,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:29:11,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:29:11,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:29:11,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:29:11,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:29:11" (1/1) ... [2020-07-10 15:29:11,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68acb741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11, skipping insertion in model container [2020-07-10 15:29:11,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:29:11" (1/1) ... [2020-07-10 15:29:11,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:29:11,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:29:11,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:29:11,687 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:29:11,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:29:11,740 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:29:11,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11 WrapperNode [2020-07-10 15:29:11,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:29:11,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:29:11,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:29:11,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:29:11,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11" (1/1) ... [2020-07-10 15:29:11,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11" (1/1) ... [2020-07-10 15:29:11,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11" (1/1) ... [2020-07-10 15:29:11,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11" (1/1) ... [2020-07-10 15:29:11,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11" (1/1) ... [2020-07-10 15:29:11,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11" (1/1) ... [2020-07-10 15:29:11,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11" (1/1) ... [2020-07-10 15:29:11,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:29:11,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:29:11,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:29:11,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:29:11,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11" (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 [2020-07-10 15:29:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:29:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:29:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:29:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:29:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:29:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:29:11,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:29:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:29:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:29:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:29:11,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:29:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:29:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:29:12,382 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:29:12,383 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 15:29:12,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:29:12 BoogieIcfgContainer [2020-07-10 15:29:12,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:29:12,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:29:12,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:29:12,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:29:12,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:29:11" (1/3) ... [2020-07-10 15:29:12,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a23bca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:29:12, skipping insertion in model container [2020-07-10 15:29:12,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:29:11" (2/3) ... [2020-07-10 15:29:12,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a23bca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:29:12, skipping insertion in model container [2020-07-10 15:29:12,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:29:12" (3/3) ... [2020-07-10 15:29:12,423 INFO L109 eAbstractionObserver]: Analyzing ICFG ddlm2013.i [2020-07-10 15:29:12,438 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:29:12,449 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:29:12,465 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:29:12,494 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:29:12,494 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:29:12,494 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:29:12,495 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:29:12,495 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:29:12,495 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:29:12,495 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:29:12,495 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:29:12,518 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-10 15:29:12,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-10 15:29:12,525 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:29:12,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:29:12,527 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:29:12,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:29:12,532 INFO L82 PathProgramCache]: Analyzing trace with hash -917653371, now seen corresponding path program 1 times [2020-07-10 15:29:12,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:29:12,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228590993] [2020-07-10 15:29:12,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:29:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:29:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:29:12,711 INFO L280 TraceCheckUtils]: 0: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-10 15:29:12,712 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25#true} {25#true} #58#return; {25#true} is VALID [2020-07-10 15:29:12,714 INFO L263 TraceCheckUtils]: 0: Hoare triple {25#true} call ULTIMATE.init(); {25#true} is VALID [2020-07-10 15:29:12,714 INFO L280 TraceCheckUtils]: 1: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-10 15:29:12,715 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25#true} {25#true} #58#return; {25#true} is VALID [2020-07-10 15:29:12,715 INFO L263 TraceCheckUtils]: 3: Hoare triple {25#true} call #t~ret4 := main(); {25#true} is VALID [2020-07-10 15:29:12,716 INFO L280 TraceCheckUtils]: 4: Hoare triple {25#true} havoc ~i~0;havoc ~j~0;havoc ~a~0;havoc ~b~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~flag~0 := #t~nondet0;havoc #t~nondet0;~a~0 := 0;~b~0 := 0;~j~0 := 1; {25#true} is VALID [2020-07-10 15:29:12,716 INFO L280 TraceCheckUtils]: 5: Hoare triple {25#true} assume !(0 != ~flag~0);~i~0 := 1; {25#true} is VALID [2020-07-10 15:29:12,718 INFO L280 TraceCheckUtils]: 6: Hoare triple {25#true} assume !true; {26#false} is VALID [2020-07-10 15:29:12,719 INFO L280 TraceCheckUtils]: 7: Hoare triple {26#false} assume 0 != ~flag~0; {26#false} is VALID [2020-07-10 15:29:12,719 INFO L263 TraceCheckUtils]: 8: Hoare triple {26#false} call __VERIFIER_assert((if ~a~0 % 4294967296 == ~b~0 % 4294967296 then 1 else 0)); {26#false} is VALID [2020-07-10 15:29:12,720 INFO L280 TraceCheckUtils]: 9: Hoare triple {26#false} ~cond := #in~cond; {26#false} is VALID [2020-07-10 15:29:12,721 INFO L280 TraceCheckUtils]: 10: Hoare triple {26#false} assume 0 == ~cond; {26#false} is VALID [2020-07-10 15:29:12,721 INFO L280 TraceCheckUtils]: 11: Hoare triple {26#false} assume !false; {26#false} is VALID [2020-07-10 15:29:12,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:29:12,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228590993] [2020-07-10 15:29:12,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:29:12,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-10 15:29:12,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230518369] [2020-07-10 15:29:12,735 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-10 15:29:12,739 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:29:12,746 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-10 15:29:12,820 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:29:12,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-10 15:29:12,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:29:12,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-10 15:29:12,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-10 15:29:12,835 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-07-10 15:29:12,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:29:12,937 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2020-07-10 15:29:12,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-10 15:29:12,937 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-10 15:29:12,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:29:12,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-10 15:29:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 42 transitions. [2020-07-10 15:29:12,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-10 15:29:12,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 42 transitions. [2020-07-10 15:29:12,954 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 42 transitions. [2020-07-10 15:29:13,056 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:29:13,068 INFO L225 Difference]: With dead ends: 35 [2020-07-10 15:29:13,068 INFO L226 Difference]: Without dead ends: 15 [2020-07-10 15:29:13,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-10 15:29:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-10 15:29:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-10 15:29:13,117 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:29:13,118 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,118 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,119 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:29:13,122 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-07-10 15:29:13,123 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-07-10 15:29:13,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:29:13,124 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:29:13,124 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,124 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:29:13,134 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-07-10 15:29:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-07-10 15:29:13,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:29:13,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:29:13,135 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:29:13,136 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:29:13,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-10 15:29:13,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-07-10 15:29:13,152 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2020-07-10 15:29:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:29:13,153 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-07-10 15:29:13,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-10 15:29:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-07-10 15:29:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-10 15:29:13,154 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:29:13,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:29:13,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:29:13,156 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:29:13,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:29:13,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1750778295, now seen corresponding path program 1 times [2020-07-10 15:29:13,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:29:13,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960836045] [2020-07-10 15:29:13,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:29:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:29:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:29:13,242 INFO L280 TraceCheckUtils]: 0: Hoare triple {125#true} assume true; {125#true} is VALID [2020-07-10 15:29:13,242 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {125#true} {125#true} #58#return; {125#true} is VALID [2020-07-10 15:29:13,243 INFO L263 TraceCheckUtils]: 0: Hoare triple {125#true} call ULTIMATE.init(); {125#true} is VALID [2020-07-10 15:29:13,244 INFO L280 TraceCheckUtils]: 1: Hoare triple {125#true} assume true; {125#true} is VALID [2020-07-10 15:29:13,244 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {125#true} {125#true} #58#return; {125#true} is VALID [2020-07-10 15:29:13,245 INFO L263 TraceCheckUtils]: 3: Hoare triple {125#true} call #t~ret4 := main(); {125#true} is VALID [2020-07-10 15:29:13,245 INFO L280 TraceCheckUtils]: 4: Hoare triple {125#true} havoc ~i~0;havoc ~j~0;havoc ~a~0;havoc ~b~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~flag~0 := #t~nondet0;havoc #t~nondet0;~a~0 := 0;~b~0 := 0;~j~0 := 1; {125#true} is VALID [2020-07-10 15:29:13,247 INFO L280 TraceCheckUtils]: 5: Hoare triple {125#true} assume !(0 != ~flag~0);~i~0 := 1; {129#(= 0 main_~flag~0)} is VALID [2020-07-10 15:29:13,249 INFO L280 TraceCheckUtils]: 6: Hoare triple {129#(= 0 main_~flag~0)} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {129#(= 0 main_~flag~0)} is VALID [2020-07-10 15:29:13,251 INFO L280 TraceCheckUtils]: 7: Hoare triple {129#(= 0 main_~flag~0)} assume !(0 != #t~nondet1);havoc #t~nondet1; {129#(= 0 main_~flag~0)} is VALID [2020-07-10 15:29:13,251 INFO L280 TraceCheckUtils]: 8: Hoare triple {129#(= 0 main_~flag~0)} assume 0 != ~flag~0; {126#false} is VALID [2020-07-10 15:29:13,252 INFO L263 TraceCheckUtils]: 9: Hoare triple {126#false} call __VERIFIER_assert((if ~a~0 % 4294967296 == ~b~0 % 4294967296 then 1 else 0)); {126#false} is VALID [2020-07-10 15:29:13,252 INFO L280 TraceCheckUtils]: 10: Hoare triple {126#false} ~cond := #in~cond; {126#false} is VALID [2020-07-10 15:29:13,253 INFO L280 TraceCheckUtils]: 11: Hoare triple {126#false} assume 0 == ~cond; {126#false} is VALID [2020-07-10 15:29:13,253 INFO L280 TraceCheckUtils]: 12: Hoare triple {126#false} assume !false; {126#false} is VALID [2020-07-10 15:29:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:29:13,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960836045] [2020-07-10 15:29:13,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:29:13,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 15:29:13,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277584351] [2020-07-10 15:29:13,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-07-10 15:29:13,258 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:29:13,258 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 15:29:13,290 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:29:13,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 15:29:13,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:29:13,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 15:29:13,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:29:13,293 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2020-07-10 15:29:13,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:29:13,355 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2020-07-10 15:29:13,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 15:29:13,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-07-10 15:29:13,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:29:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:29:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-10 15:29:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:29:13,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-10 15:29:13,360 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-10 15:29:13,412 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:29:13,413 INFO L225 Difference]: With dead ends: 24 [2020-07-10 15:29:13,413 INFO L226 Difference]: Without dead ends: 15 [2020-07-10 15:29:13,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:29:13,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-10 15:29:13,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-10 15:29:13,423 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:29:13,424 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,424 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,425 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:29:13,428 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-07-10 15:29:13,428 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-07-10 15:29:13,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:29:13,429 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:29:13,429 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,429 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-10 15:29:13,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:29:13,431 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-07-10 15:29:13,432 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-07-10 15:29:13,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:29:13,432 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:29:13,433 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:29:13,433 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:29:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-10 15:29:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-07-10 15:29:13,436 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2020-07-10 15:29:13,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:29:13,437 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-07-10 15:29:13,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 15:29:13,437 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-07-10 15:29:13,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-10 15:29:13,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:29:13,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:29:13,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:29:13,439 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:29:13,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:29:13,439 INFO L82 PathProgramCache]: Analyzing trace with hash -941431669, now seen corresponding path program 1 times [2020-07-10 15:29:13,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:29:13,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561168602] [2020-07-10 15:29:13,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:29:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:29:13,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 15:29:13,509 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:391) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-10 15:29:13,520 INFO L168 Benchmark]: Toolchain (without parser) took 2216.13 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 96.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:13,523 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 15:29:13,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.38 ms. Allocated memory is still 143.1 MB. Free memory was 101.2 MB in the beginning and 91.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:13,530 INFO L168 Benchmark]: Boogie Preprocessor took 147.97 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 91.3 MB in the beginning and 180.0 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:13,532 INFO L168 Benchmark]: RCFGBuilder took 511.83 ms. Allocated memory is still 200.8 MB. Free memory was 180.0 MB in the beginning and 161.5 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:13,533 INFO L168 Benchmark]: TraceAbstraction took 1108.56 ms. Allocated memory is still 200.8 MB. Free memory was 160.7 MB in the beginning and 96.8 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2020-07-10 15:29:13,544 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 437.38 ms. Allocated memory is still 143.1 MB. Free memory was 101.2 MB in the beginning and 91.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.97 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 91.3 MB in the beginning and 180.0 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 511.83 ms. Allocated memory is still 200.8 MB. Free memory was 180.0 MB in the beginning and 161.5 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1108.56 ms. Allocated memory is still 200.8 MB. Free memory was 160.7 MB in the beginning and 96.8 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...