/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 12:10:45,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 12:10:45,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 12:10:45,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 12:10:45,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 12:10:45,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 12:10:45,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 12:10:45,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 12:10:45,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 12:10:45,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 12:10:45,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 12:10:45,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 12:10:45,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 12:10:45,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 12:10:45,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 12:10:45,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 12:10:45,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 12:10:45,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 12:10:45,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 12:10:45,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 12:10:45,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 12:10:45,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 12:10:45,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 12:10:45,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 12:10:45,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 12:10:45,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 12:10:45,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 12:10:45,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 12:10:45,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 12:10:45,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 12:10:45,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 12:10:45,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 12:10:45,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 12:10:45,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 12:10:45,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 12:10:45,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 12:10:45,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 12:10:45,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 12:10:45,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 12:10:45,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 12:10:45,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 12:10:45,627 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 [2020-07-20 12:10:45,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 12:10:45,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 12:10:45,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 12:10:45,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 12:10:45,651 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 12:10:45,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 12:10:45,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 12:10:45,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 12:10:45,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 12:10:45,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 12:10:45,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 12:10:45,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 12:10:45,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 12:10:45,653 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 12:10:45,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 12:10:45,654 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 12:10:45,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 12:10:45,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 12:10:45,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 12:10:45,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 12:10:45,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 12:10:45,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 12:10:45,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 12:10:45,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 12:10:45,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 12:10:45,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 12:10:45,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:10:45,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 12:10:45,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 12:10:45,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 12:10:46,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 12:10:46,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 12:10:46,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 12:10:46,102 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 12:10:46,103 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 12:10:46,104 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-07-20 12:10:46,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8744a73ec/74f85c9d932040158541b22271c62d55/FLAG0d356d21f [2020-07-20 12:10:47,153 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 12:10:47,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-07-20 12:10:47,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8744a73ec/74f85c9d932040158541b22271c62d55/FLAG0d356d21f [2020-07-20 12:10:47,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8744a73ec/74f85c9d932040158541b22271c62d55 [2020-07-20 12:10:47,227 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 12:10:47,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 12:10:47,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 12:10:47,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 12:10:47,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 12:10:47,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:10:47" (1/1) ... [2020-07-20 12:10:47,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4fd27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47, skipping insertion in model container [2020-07-20 12:10:47,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:10:47" (1/1) ... [2020-07-20 12:10:47,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 12:10:47,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 12:10:47,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:10:47,581 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 12:10:47,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:10:47,640 INFO L208 MainTranslator]: Completed translation [2020-07-20 12:10:47,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47 WrapperNode [2020-07-20 12:10:47,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 12:10:47,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 12:10:47,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 12:10:47,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 12:10:47,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47" (1/1) ... [2020-07-20 12:10:47,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47" (1/1) ... [2020-07-20 12:10:47,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47" (1/1) ... [2020-07-20 12:10:47,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47" (1/1) ... [2020-07-20 12:10:47,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47" (1/1) ... [2020-07-20 12:10:47,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47" (1/1) ... [2020-07-20 12:10:47,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47" (1/1) ... [2020-07-20 12:10:47,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 12:10:47,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 12:10:47,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 12:10:47,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 12:10:47,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47" (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 [2020-07-20 12:10:47,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 12:10:47,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 12:10:47,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 12:10:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 12:10:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 12:10:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 12:10:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 12:10:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 12:10:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 12:10:48,435 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 12:10:48,436 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 12:10:48,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:10:48 BoogieIcfgContainer [2020-07-20 12:10:48,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 12:10:48,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 12:10:48,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 12:10:48,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 12:10:48,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:10:47" (1/3) ... [2020-07-20 12:10:48,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4936b29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:10:48, skipping insertion in model container [2020-07-20 12:10:48,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:10:47" (2/3) ... [2020-07-20 12:10:48,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4936b29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:10:48, skipping insertion in model container [2020-07-20 12:10:48,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:10:48" (3/3) ... [2020-07-20 12:10:48,469 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2020-07-20 12:10:48,496 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 12:10:48,520 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 12:10:48,553 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 12:10:48,603 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 12:10:48,604 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 12:10:48,604 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 12:10:48,604 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 12:10:48,604 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 12:10:48,604 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 12:10:48,605 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 12:10:48,605 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 12:10:48,648 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-07-20 12:10:48,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-20 12:10:48,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:10:48,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:10:48,670 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:10:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:10:48,686 INFO L82 PathProgramCache]: Analyzing trace with hash 446778609, now seen corresponding path program 1 times [2020-07-20 12:10:48,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:10:48,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19472082] [2020-07-20 12:10:48,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in