/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-invariants/odd.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 20:25:50,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 20:25:50,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 20:25:50,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 20:25:50,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 20:25:50,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 20:25:50,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 20:25:50,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 20:25:50,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 20:25:50,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 20:25:50,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 20:25:50,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 20:25:50,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 20:25:50,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 20:25:50,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 20:25:50,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 20:25:50,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 20:25:50,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 20:25:50,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 20:25:50,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 20:25:50,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 20:25:50,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 20:25:50,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 20:25:50,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 20:25:50,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 20:25:50,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 20:25:50,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 20:25:50,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 20:25:50,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 20:25:50,359 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 20:25:50,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 20:25:50,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 20:25:50,361 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 20:25:50,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 20:25:50,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 20:25:50,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 20:25:50,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 20:25:50,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 20:25:50,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 20:25:50,364 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 20:25:50,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 20:25:50,365 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 20:25:50,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 20:25:50,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 20:25:50,368 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 20:25:50,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 20:25:50,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 20:25:50,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 20:25:50,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 20:25:50,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 20:25:50,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 20:25:50,372 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 20:25:50,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 20:25:50,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 20:25:50,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 20:25:50,696 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 20:25:50,697 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 20:25:50,697 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c [2020-07-10 20:25:50,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2fd00eff/493321630fc74999a9ae4b40f38ccc7c/FLAGed19ac6c0 [2020-07-10 20:25:51,258 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 20:25:51,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c [2020-07-10 20:25:51,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2fd00eff/493321630fc74999a9ae4b40f38ccc7c/FLAGed19ac6c0 [2020-07-10 20:25:51,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2fd00eff/493321630fc74999a9ae4b40f38ccc7c [2020-07-10 20:25:51,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 20:25:51,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 20:25:51,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 20:25:51,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 20:25:51,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 20:25:51,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:25:51" (1/1) ... [2020-07-10 20:25:51,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161b7128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51, skipping insertion in model container [2020-07-10 20:25:51,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:25:51" (1/1) ... [2020-07-10 20:25:51,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 20:25:51,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 20:25:51,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:25:51,849 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 20:25:51,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:25:51,898 INFO L208 MainTranslator]: Completed translation [2020-07-10 20:25:51,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51 WrapperNode [2020-07-10 20:25:51,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 20:25:51,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 20:25:51,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 20:25:51,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 20:25:51,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51" (1/1) ... [2020-07-10 20:25:51,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51" (1/1) ... [2020-07-10 20:25:51,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51" (1/1) ... [2020-07-10 20:25:51,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51" (1/1) ... [2020-07-10 20:25:51,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51" (1/1) ... [2020-07-10 20:25:51,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51" (1/1) ... [2020-07-10 20:25:51,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51" (1/1) ... [2020-07-10 20:25:51,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 20:25:51,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 20:25:51,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 20:25:51,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 20:25:51,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51" (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 20:25:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 20:25:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 20:25:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 20:25:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 20:25:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 20:25:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 20:25:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 20:25:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 20:25:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 20:25:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 20:25:52,325 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 20:25:52,325 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 20:25:52,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:25:52 BoogieIcfgContainer [2020-07-10 20:25:52,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 20:25:52,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 20:25:52,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 20:25:52,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 20:25:52,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 08:25:51" (1/3) ... [2020-07-10 20:25:52,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5236bd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:25:52, skipping insertion in model container [2020-07-10 20:25:52,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:51" (2/3) ... [2020-07-10 20:25:52,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5236bd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:25:52, skipping insertion in model container [2020-07-10 20:25:52,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:25:52" (3/3) ... [2020-07-10 20:25:52,341 INFO L109 eAbstractionObserver]: Analyzing ICFG odd.c [2020-07-10 20:25:52,360 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 20:25:52,371 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 20:25:52,387 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 20:25:52,416 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 20:25:52,417 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 20:25:52,417 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 20:25:52,417 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 20:25:52,418 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 20:25:52,418 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 20:25:52,418 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 20:25:52,418 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 20:25:52,437 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-10 20:25:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-10 20:25:52,448 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:25:52,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 20:25:52,450 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:25:52,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:25:52,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1137787585, now seen corresponding path program 1 times [2020-07-10 20:25:52,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:25:52,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166929816] [2020-07-10 20:25:52,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:25:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:25:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:25:52,613 INFO L280 TraceCheckUtils]: 0: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-10 20:25:52,614 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25#true} {25#true} #36#return; {25#true} is VALID [2020-07-10 20:25:52,616 INFO L263 TraceCheckUtils]: 0: Hoare triple {25#true} call ULTIMATE.init(); {25#true} is VALID [2020-07-10 20:25:52,617 INFO L280 TraceCheckUtils]: 1: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-10 20:25:52,617 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25#true} {25#true} #36#return; {25#true} is VALID [2020-07-10 20:25:52,618 INFO L263 TraceCheckUtils]: 3: Hoare triple {25#true} call #t~ret1 := main(); {25#true} is VALID [2020-07-10 20:25:52,618 INFO L280 TraceCheckUtils]: 4: Hoare triple {25#true} ~x~0 := 1; {25#true} is VALID [2020-07-10 20:25:52,620 INFO L280 TraceCheckUtils]: 5: Hoare triple {25#true} assume !true; {26#false} is VALID [2020-07-10 20:25:52,620 INFO L263 TraceCheckUtils]: 6: Hoare triple {26#false} call __VERIFIER_assert((if (if ~x~0 % 4294967296 < 0 && 0 != ~x~0 % 4294967296 % 2 then ~x~0 % 4294967296 % 2 - 2 else ~x~0 % 4294967296 % 2) % 4294967296 % 4294967296 <= 2147483647 then (if ~x~0 % 4294967296 < 0 && 0 != ~x~0 % 4294967296 % 2 then ~x~0 % 4294967296 % 2 - 2 else ~x~0 % 4294967296 % 2) % 4294967296 % 4294967296 else (if ~x~0 % 4294967296 < 0 && 0 != ~x~0 % 4294967296 % 2 then ~x~0 % 4294967296 % 2 - 2 else ~x~0 % 4294967296 % 2) % 4294967296 % 4294967296 - 4294967296)); {26#false} is VALID [2020-07-10 20:25:52,621 INFO L280 TraceCheckUtils]: 7: Hoare triple {26#false} ~cond := #in~cond; {26#false} is VALID [2020-07-10 20:25:52,621 INFO L280 TraceCheckUtils]: 8: Hoare triple {26#false} assume 0 == ~cond; {26#false} is VALID [2020-07-10 20:25:52,622 INFO L280 TraceCheckUtils]: 9: Hoare triple {26#false} assume !false; {26#false} is VALID [2020-07-10 20:25:52,623 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 20:25:52,623 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:25:52,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166929816] [2020-07-10 20:25:52,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:25:52,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-10 20:25:52,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327635597] [2020-07-10 20:25:52,636 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-10 20:25:52,640 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:25:52,645 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-10 20:25:52,675 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:25:52,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-10 20:25:52,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:25:52,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-10 20:25:52,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-10 20:25:52,689 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-07-10 20:25:52,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:25:52,775 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-07-10 20:25:52,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-10 20:25:52,776 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-10 20:25:52,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:25:52,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-10 20:25:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 37 transitions. [2020-07-10 20:25:52,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-10 20:25:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 37 transitions. [2020-07-10 20:25:52,795 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 37 transitions. [2020-07-10 20:25:52,893 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:25:52,906 INFO L225 Difference]: With dead ends: 34 [2020-07-10 20:25:52,906 INFO L226 Difference]: Without dead ends: 15 [2020-07-10 20:25:52,910 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 20:25:52,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-10 20:25:52,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-10 20:25:52,960 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:25:52,961 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-10 20:25:52,962 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-10 20:25:52,962 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-10 20:25:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:25:52,965 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-10 20:25:52,966 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-10 20:25:52,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:25:52,967 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:25:52,967 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-10 20:25:52,967 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-10 20:25:52,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:25:52,971 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-10 20:25:52,971 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-10 20:25:52,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:25:52,972 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:25:52,972 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:25:52,972 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:25:52,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-10 20:25:52,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-07-10 20:25:52,976 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2020-07-10 20:25:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:25:52,977 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-07-10 20:25:52,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-10 20:25:52,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 15 transitions. [2020-07-10 20:25:53,004 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:25:53,004 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-10 20:25:53,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-10 20:25:53,005 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:25:53,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 20:25:53,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 20:25:53,006 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:25:53,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:25:53,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1424281528, now seen corresponding path program 1 times [2020-07-10 20:25:53,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:25:53,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831546843] [2020-07-10 20:25:53,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:25:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:25:53,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 20:25:53,086 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.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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-10 20:25:53,092 INFO L168 Benchmark]: Toolchain (without parser) took 1458.64 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 103.6 MB in the beginning and 121.6 MB in the end (delta: -18.0 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:53,094 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-10 20:25:53,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.37 ms. Allocated memory is still 138.4 MB. Free memory was 103.4 MB in the beginning and 94.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:53,096 INFO L168 Benchmark]: Boogie Preprocessor took 31.76 ms. Allocated memory is still 138.4 MB. Free memory was 94.0 MB in the beginning and 92.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:53,097 INFO L168 Benchmark]: RCFGBuilder took 398.88 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 92.3 MB in the beginning and 166.7 MB in the end (delta: -74.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:53,098 INFO L168 Benchmark]: TraceAbstraction took 757.23 ms. Allocated memory is still 202.4 MB. Free memory was 166.7 MB in the beginning and 121.6 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:53,102 INFO L336 ainManager$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 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.37 ms. Allocated memory is still 138.4 MB. Free memory was 103.4 MB in the beginning and 94.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.76 ms. Allocated memory is still 138.4 MB. Free memory was 94.0 MB in the beginning and 92.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 398.88 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 92.3 MB in the beginning and 166.7 MB in the end (delta: -74.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 757.23 ms. Allocated memory is still 202.4 MB. Free memory was 166.7 MB in the beginning and 121.6 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 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...