/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-lit/ddlm2013.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 17:39:46,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 17:39:46,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 17:39:46,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 17:39:46,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 17:39:46,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 17:39:46,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 17:39:46,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 17:39:46,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 17:39:46,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 17:39:46,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 17:39:46,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 17:39:46,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 17:39:46,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 17:39:46,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 17:39:46,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 17:39:46,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 17:39:46,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 17:39:46,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 17:39:46,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 17:39:46,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 17:39:46,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 17:39:46,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 17:39:46,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 17:39:46,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 17:39:46,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 17:39:46,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 17:39:46,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 17:39:46,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 17:39:46,882 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 17:39:46,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 17:39:46,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 17:39:46,886 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 17:39:46,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 17:39:46,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 17:39:46,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 17:39:46,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 17:39:46,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 17:39:46,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 17:39:46,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 17:39:46,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 17:39:46,888 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 17:39:46,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 17:39:46,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 17:39:46,889 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 17:39:46,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 17:39:46,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 17:39:46,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 17:39:46,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 17:39:46,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 17:39:46,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 17:39:46,891 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 17:39:47,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 17:39:47,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 17:39:47,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 17:39:47,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 17:39:47,205 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 17:39:47,207 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/ddlm2013.i [2020-07-08 17:39:47,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89545c7bb/e5e97210c5f04a71a795aa040bdf96c9/FLAG07a7f3640 [2020-07-08 17:39:47,725 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 17:39:47,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/ddlm2013.i [2020-07-08 17:39:47,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89545c7bb/e5e97210c5f04a71a795aa040bdf96c9/FLAG07a7f3640 [2020-07-08 17:39:48,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89545c7bb/e5e97210c5f04a71a795aa040bdf96c9 [2020-07-08 17:39:48,149 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 17:39:48,152 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 17:39:48,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 17:39:48,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 17:39:48,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 17:39:48,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:39:48" (1/1) ... [2020-07-08 17:39:48,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d456c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48, skipping insertion in model container [2020-07-08 17:39:48,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:39:48" (1/1) ... [2020-07-08 17:39:48,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 17:39:48,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 17:39:48,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:39:48,388 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 17:39:48,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:39:48,445 INFO L208 MainTranslator]: Completed translation [2020-07-08 17:39:48,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48 WrapperNode [2020-07-08 17:39:48,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 17:39:48,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 17:39:48,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 17:39:48,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 17:39:48,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48" (1/1) ... [2020-07-08 17:39:48,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48" (1/1) ... [2020-07-08 17:39:48,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48" (1/1) ... [2020-07-08 17:39:48,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48" (1/1) ... [2020-07-08 17:39:48,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48" (1/1) ... [2020-07-08 17:39:48,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48" (1/1) ... [2020-07-08 17:39:48,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48" (1/1) ... [2020-07-08 17:39:48,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 17:39:48,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 17:39:48,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 17:39:48,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 17:39:48,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48" (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 [2020-07-08 17:39:48,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 17:39:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 17:39:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 17:39:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 17:39:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 17:39:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 17:39:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 17:39:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 17:39:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 17:39:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 17:39:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 17:39:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 17:39:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 17:39:49,060 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 17:39:49,060 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 17:39:49,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:39:49 BoogieIcfgContainer [2020-07-08 17:39:49,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 17:39:49,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 17:39:49,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 17:39:49,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 17:39:49,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 05:39:48" (1/3) ... [2020-07-08 17:39:49,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ee31bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:39:49, skipping insertion in model container [2020-07-08 17:39:49,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:39:48" (2/3) ... [2020-07-08 17:39:49,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ee31bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:39:49, skipping insertion in model container [2020-07-08 17:39:49,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:39:49" (3/3) ... [2020-07-08 17:39:49,074 INFO L109 eAbstractionObserver]: Analyzing ICFG ddlm2013.i [2020-07-08 17:39:49,091 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 17:39:49,104 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 17:39:49,118 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 17:39:49,140 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 17:39:49,141 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 17:39:49,141 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 17:39:49,141 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 17:39:49,141 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 17:39:49,141 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 17:39:49,142 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 17:39:49,142 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 17:39:49,157 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-07-08 17:39:49,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-08 17:39:49,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:39:49,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:39:49,178 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:39:49,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:39:49,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1686675663, now seen corresponding path program 1 times [2020-07-08 17:39:49,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:39:49,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191330185] [2020-07-08 17:39:49,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:39:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:49,361 INFO L280 TraceCheckUtils]: 0: Hoare triple {47#true} assume true; {47#true} is VALID [2020-07-08 17:39:49,362 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {47#true} {47#true} #81#return; {47#true} is VALID [2020-07-08 17:39:49,365 INFO L263 TraceCheckUtils]: 0: Hoare triple {47#true} call ULTIMATE.init(); {47#true} is VALID [2020-07-08 17:39:49,365 INFO L280 TraceCheckUtils]: 1: Hoare triple {47#true} assume true; {47#true} is VALID [2020-07-08 17:39:49,366 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {47#true} {47#true} #81#return; {47#true} is VALID [2020-07-08 17:39:49,366 INFO L263 TraceCheckUtils]: 3: Hoare triple {47#true} call #t~ret4 := main(); {47#true} is VALID [2020-07-08 17:39:49,366 INFO L280 TraceCheckUtils]: 4: Hoare triple {47#true} havoc ~i~0; {47#true} is VALID [2020-07-08 17:39:49,367 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#true} havoc ~j~0; {47#true} is VALID [2020-07-08 17:39:49,367 INFO L280 TraceCheckUtils]: 6: Hoare triple {47#true} havoc ~a~0; {47#true} is VALID [2020-07-08 17:39:49,368 INFO L280 TraceCheckUtils]: 7: Hoare triple {47#true} havoc ~b~0; {47#true} is VALID [2020-07-08 17:39:49,368 INFO L280 TraceCheckUtils]: 8: Hoare triple {47#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {47#true} is VALID [2020-07-08 17:39:49,369 INFO L280 TraceCheckUtils]: 9: Hoare triple {47#true} ~flag~0 := #t~nondet0; {47#true} is VALID [2020-07-08 17:39:49,369 INFO L280 TraceCheckUtils]: 10: Hoare triple {47#true} havoc #t~nondet0; {47#true} is VALID [2020-07-08 17:39:49,370 INFO L280 TraceCheckUtils]: 11: Hoare triple {47#true} ~a~0 := 0; {47#true} is VALID [2020-07-08 17:39:49,370 INFO L280 TraceCheckUtils]: 12: Hoare triple {47#true} ~b~0 := 0; {47#true} is VALID [2020-07-08 17:39:49,371 INFO L280 TraceCheckUtils]: 13: Hoare triple {47#true} ~j~0 := 1; {47#true} is VALID [2020-07-08 17:39:49,371 INFO L280 TraceCheckUtils]: 14: Hoare triple {47#true} assume 0 != ~flag~0; {47#true} is VALID [2020-07-08 17:39:49,372 INFO L280 TraceCheckUtils]: 15: Hoare triple {47#true} ~i~0 := 0; {47#true} is VALID [2020-07-08 17:39:49,373 INFO L280 TraceCheckUtils]: 16: Hoare triple {47#true} assume !true; {48#false} is VALID [2020-07-08 17:39:49,374 INFO L280 TraceCheckUtils]: 17: Hoare triple {48#false} assume 0 != ~flag~0; {48#false} is VALID [2020-07-08 17:39:49,374 INFO L263 TraceCheckUtils]: 18: Hoare triple {48#false} call __VERIFIER_assert((if ~a~0 % 4294967296 == ~b~0 % 4294967296 then 1 else 0)); {48#false} is VALID [2020-07-08 17:39:49,375 INFO L280 TraceCheckUtils]: 19: Hoare triple {48#false} ~cond := #in~cond; {48#false} is VALID [2020-07-08 17:39:49,375 INFO L280 TraceCheckUtils]: 20: Hoare triple {48#false} assume 0 == ~cond; {48#false} is VALID [2020-07-08 17:39:49,376 INFO L280 TraceCheckUtils]: 21: Hoare triple {48#false} assume !false; {48#false} is VALID [2020-07-08 17:39:49,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:39:49,379 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:39:49,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191330185] [2020-07-08 17:39:49,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:39:49,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-08 17:39:49,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993663825] [2020-07-08 17:39:49,392 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2020-07-08 17:39:49,396 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:39:49,400 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-08 17:39:49,452 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:49,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-08 17:39:49,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:39:49,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-08 17:39:49,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-08 17:39:49,465 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-07-08 17:39:49,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:49,697 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2020-07-08 17:39:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-08 17:39:49,698 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2020-07-08 17:39:49,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:39:49,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-08 17:39:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions. [2020-07-08 17:39:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-08 17:39:49,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions. [2020-07-08 17:39:49,746 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 64 transitions. [2020-07-08 17:39:49,911 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:49,924 INFO L225 Difference]: With dead ends: 57 [2020-07-08 17:39:49,925 INFO L226 Difference]: Without dead ends: 37 [2020-07-08 17:39:49,928 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 [2020-07-08 17:39:49,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-08 17:39:49,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-07-08 17:39:49,988 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:39:49,989 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 37 states. [2020-07-08 17:39:49,989 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2020-07-08 17:39:49,990 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2020-07-08 17:39:49,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:49,996 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2020-07-08 17:39:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-07-08 17:39:49,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:49,997 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:49,998 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2020-07-08 17:39:49,998 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2020-07-08 17:39:50,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:50,004 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2020-07-08 17:39:50,004 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-07-08 17:39:50,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:50,005 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:50,005 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:39:50,006 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:39:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-08 17:39:50,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-07-08 17:39:50,011 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 22 [2020-07-08 17:39:50,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:39:50,012 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-07-08 17:39:50,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-08 17:39:50,012 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states and 39 transitions. [2020-07-08 17:39:50,077 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:50,077 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-07-08 17:39:50,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-08 17:39:50,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:39:50,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:39:50,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 17:39:50,080 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:39:50,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:39:50,081 INFO L82 PathProgramCache]: Analyzing trace with hash 779060326, now seen corresponding path program 1 times [2020-07-08 17:39:50,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:39:50,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965235533] [2020-07-08 17:39:50,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:39:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:50,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 17:39:50,139 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:799) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:883) 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.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 17:39:50,146 INFO L168 Benchmark]: Toolchain (without parser) took 1994.38 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 91.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 7.1 GB. [2020-07-08 17:39:50,148 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 136.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 17:39:50,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.73 ms. Allocated memory is still 136.3 MB. Free memory was 99.6 MB in the beginning and 89.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-08 17:39:50,150 INFO L168 Benchmark]: Boogie Preprocessor took 134.17 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 89.7 MB in the beginning and 179.0 MB in the end (delta: -89.3 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-07-08 17:39:50,151 INFO L168 Benchmark]: RCFGBuilder took 483.50 ms. Allocated memory is still 200.3 MB. Free memory was 179.0 MB in the beginning and 158.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-07-08 17:39:50,152 INFO L168 Benchmark]: TraceAbstraction took 1076.85 ms. Allocated memory is still 200.3 MB. Free memory was 157.5 MB in the beginning and 91.9 MB in the end (delta: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 7.1 GB. [2020-07-08 17:39:50,158 INFO L336 ainManager$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 0.30 ms. Allocated memory is still 136.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 293.73 ms. Allocated memory is still 136.3 MB. Free memory was 99.6 MB in the beginning and 89.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.17 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 89.7 MB in the beginning and 179.0 MB in the end (delta: -89.3 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 483.50 ms. Allocated memory is still 200.3 MB. Free memory was 179.0 MB in the beginning and 158.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1076.85 ms. Allocated memory is still 200.3 MB. Free memory was 157.5 MB in the beginning and 91.9 MB in the end (delta: 65.6 MB). Peak memory consumption was 65.6 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...