/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:47:47,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:47:47,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:47:47,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:47:47,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:47:47,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:47:47,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:47:47,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:47:47,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:47:47,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:47:47,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:47:47,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:47:47,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:47:47,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:47:47,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:47:47,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:47:47,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:47:47,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:47:47,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:47:47,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:47:47,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:47:47,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:47:47,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:47:47,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:47:47,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:47:47,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:47:47,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:47:47,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:47:47,650 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 22:47:47,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:47:47,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:47:47,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:47:47,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:47:47,669 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:47:47,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:47:47,669 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:47:47,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:47:47,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:47:47,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:47:47,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:47:47,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:47:47,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:47:47,671 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:47:47,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:47:47,671 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:47:47,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:47:47,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:47:47,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:47:47,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:47:47,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:47:47,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:47:47,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:47:47,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:47:47,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:47:47,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:47:47,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:47,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:47:47,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:47:47,674 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:47:47,997 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:47:48,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:47:48,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:47:48,028 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:47:48,028 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:47:48,030 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2020-07-20 22:47:48,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47045d92e/d14a34156a024b46975d7eec6f248a13/FLAG9dfb43d59 [2020-07-20 22:47:48,642 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:47:48,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2020-07-20 22:47:48,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47045d92e/d14a34156a024b46975d7eec6f248a13/FLAG9dfb43d59 [2020-07-20 22:47:48,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47045d92e/d14a34156a024b46975d7eec6f248a13 [2020-07-20 22:47:48,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:47:48,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:47:48,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:47:48,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:47:48,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:47:48,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:47:48" (1/1) ... [2020-07-20 22:47:48,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411b7534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:48, skipping insertion in model container [2020-07-20 22:47:48,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:47:48" (1/1) ... [2020-07-20 22:47:48,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:47:49,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:47:49,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:47:49,451 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:47:49,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:47:49,565 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:47:49,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49 WrapperNode [2020-07-20 22:47:49,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:47:49,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:47:49,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:47:49,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:47:49,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:47:49,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:47:49,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:47:49,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:47:49,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (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 22:47:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:47:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:47:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 22:47:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-07-20 22:47:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2020-07-20 22:47:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2020-07-20 22:47:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2020-07-20 22:47:49,749 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2020-07-20 22:47:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2020-07-20 22:47:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2020-07-20 22:47:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2020-07-20 22:47:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:47:49,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 22:47:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:47:49,751 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 22:47:49,751 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 22:47:49,751 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-07-20 22:47:49,751 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-07-20 22:47:49,751 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-07-20 22:47:49,752 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2020-07-20 22:47:49,752 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2020-07-20 22:47:49,752 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2020-07-20 22:47:49,752 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2020-07-20 22:47:49,752 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 22:47:49,752 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2020-07-20 22:47:49,752 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2020-07-20 22:47:49,753 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-20 22:47:49,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:47:49,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 22:47:49,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 22:47:49,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 22:47:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 22:47:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 22:47:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 22:47:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 22:47:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 22:47:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 22:47:49,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:47:49,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-20 22:47:49,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:47:50,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:47:50,938 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-20 22:47:50,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:47:50 BoogieIcfgContainer [2020-07-20 22:47:50,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:47:50,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:47:50,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:47:50,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:47:50,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:47:48" (1/3) ... [2020-07-20 22:47:50,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11eb43d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:47:50, skipping insertion in model container [2020-07-20 22:47:50,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (2/3) ... [2020-07-20 22:47:50,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11eb43d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:47:50, skipping insertion in model container [2020-07-20 22:47:50,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:47:50" (3/3) ... [2020-07-20 22:47:50,954 INFO L109 eAbstractionObserver]: Analyzing ICFG ofuf_5.c [2020-07-20 22:47:50,966 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:47:50,975 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:47:50,988 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:47:51,011 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:47:51,011 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:47:51,012 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:47:51,012 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:47:51,012 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:47:51,013 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:47:51,013 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:47:51,013 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:47:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-07-20 22:47:51,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-20 22:47:51,046 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:51,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:47:51,048 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:51,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:51,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1328586124, now seen corresponding path program 1 times [2020-07-20 22:47:51,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:51,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541960328] [2020-07-20 22:47:51,067 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 22:47:51,408 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 22:47:51,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:51,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:47:51,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:47:51,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:51,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541960328] [2020-07-20 22:47:51,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:51,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 22:47:51,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80955794] [2020-07-20 22:47:51,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 22:47:51,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:51,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 22:47:51,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 22:47:51,503 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 4 states. [2020-07-20 22:47:51,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:51,621 INFO L93 Difference]: Finished difference Result 258 states and 390 transitions. [2020-07-20 22:47:51,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 22:47:51,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-07-20 22:47:51,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:51,638 INFO L225 Difference]: With dead ends: 258 [2020-07-20 22:47:51,638 INFO L226 Difference]: Without dead ends: 132 [2020-07-20 22:47:51,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:47:51,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-20 22:47:51,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-07-20 22:47:51,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-20 22:47:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 183 transitions. [2020-07-20 22:47:51,711 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 183 transitions. Word has length 43 [2020-07-20 22:47:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:51,711 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 183 transitions. [2020-07-20 22:47:51,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 22:47:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 183 transitions. [2020-07-20 22:47:51,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 22:47:51,717 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:51,717 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:47:51,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:51,931 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:51,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:51,932 INFO L82 PathProgramCache]: Analyzing trace with hash -671776074, now seen corresponding path program 1 times [2020-07-20 22:47:51,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:51,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760134792] [2020-07-20 22:47:51,933 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:52,118 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:47:52,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:52,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:47:52,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 22:47:52,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:52,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760134792] [2020-07-20 22:47:52,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:52,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:47:52,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051625302] [2020-07-20 22:47:52,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:47:52,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:52,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:47:52,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:47:52,155 INFO L87 Difference]: Start difference. First operand 132 states and 183 transitions. Second operand 3 states. [2020-07-20 22:47:52,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:52,202 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2020-07-20 22:47:52,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:47:52,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 22:47:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:52,209 INFO L225 Difference]: With dead ends: 270 [2020-07-20 22:47:52,209 INFO L226 Difference]: Without dead ends: 153 [2020-07-20 22:47:52,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:47:52,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-07-20 22:47:52,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 133. [2020-07-20 22:47:52,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 22:47:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 184 transitions. [2020-07-20 22:47:52,250 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 184 transitions. Word has length 51 [2020-07-20 22:47:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:52,251 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 184 transitions. [2020-07-20 22:47:52,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:47:52,251 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 184 transitions. [2020-07-20 22:47:52,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 22:47:52,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:52,263 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:47:52,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:52,477 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:52,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:52,479 INFO L82 PathProgramCache]: Analyzing trace with hash -713052232, now seen corresponding path program 1 times [2020-07-20 22:47:52,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:52,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991183520] [2020-07-20 22:47:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:52,679 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:47:52,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:52,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:47:52,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:52,704 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 22:47:52,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:52,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991183520] [2020-07-20 22:47:52,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:52,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:47:52,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473609747] [2020-07-20 22:47:52,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:47:52,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:52,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:47:52,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:47:52,709 INFO L87 Difference]: Start difference. First operand 133 states and 184 transitions. Second operand 3 states. [2020-07-20 22:47:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:52,735 INFO L93 Difference]: Finished difference Result 196 states and 266 transitions. [2020-07-20 22:47:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:47:52,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 22:47:52,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:52,739 INFO L225 Difference]: With dead ends: 196 [2020-07-20 22:47:52,739 INFO L226 Difference]: Without dead ends: 141 [2020-07-20 22:47:52,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:47:52,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-20 22:47:52,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 133. [2020-07-20 22:47:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 22:47:52,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 183 transitions. [2020-07-20 22:47:52,759 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 183 transitions. Word has length 53 [2020-07-20 22:47:52,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:52,760 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 183 transitions. [2020-07-20 22:47:52,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:47:52,760 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 183 transitions. [2020-07-20 22:47:52,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-20 22:47:52,763 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:52,763 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:47:52,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:52,978 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:52,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:52,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449835, now seen corresponding path program 1 times [2020-07-20 22:47:52,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:52,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237922149] [2020-07-20 22:47:52,980 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:53,162 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:47:53,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:53,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:47:53,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 22:47:53,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:53,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237922149] [2020-07-20 22:47:53,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:53,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:47:53,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004491138] [2020-07-20 22:47:53,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:47:53,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:53,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:47:53,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:47:53,191 INFO L87 Difference]: Start difference. First operand 133 states and 183 transitions. Second operand 3 states. [2020-07-20 22:47:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:53,223 INFO L93 Difference]: Finished difference Result 206 states and 282 transitions. [2020-07-20 22:47:53,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:47:53,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-07-20 22:47:53,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:53,226 INFO L225 Difference]: With dead ends: 206 [2020-07-20 22:47:53,226 INFO L226 Difference]: Without dead ends: 151 [2020-07-20 22:47:53,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:47:53,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-07-20 22:47:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 134. [2020-07-20 22:47:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-20 22:47:53,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 184 transitions. [2020-07-20 22:47:53,244 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 184 transitions. Word has length 54 [2020-07-20 22:47:53,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:53,245 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 184 transitions. [2020-07-20 22:47:53,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:47:53,245 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 184 transitions. [2020-07-20 22:47:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 22:47:53,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:53,249 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:47:53,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:53,464 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:53,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:53,465 INFO L82 PathProgramCache]: Analyzing trace with hash -387011243, now seen corresponding path program 1 times [2020-07-20 22:47:53,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:53,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649978884] [2020-07-20 22:47:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:53,651 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 22:47:53,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:53,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:47:53,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:53,697 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 22:47:53,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:53,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649978884] [2020-07-20 22:47:53,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:53,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:47:53,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842715053] [2020-07-20 22:47:53,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:47:53,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:53,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:47:53,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:47:53,737 INFO L87 Difference]: Start difference. First operand 134 states and 184 transitions. Second operand 5 states. [2020-07-20 22:47:53,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:53,843 INFO L93 Difference]: Finished difference Result 170 states and 230 transitions. [2020-07-20 22:47:53,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:47:53,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-07-20 22:47:53,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:53,846 INFO L225 Difference]: With dead ends: 170 [2020-07-20 22:47:53,847 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:47:53,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:47:53,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:47:53,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:47:53,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:47:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:47:53,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-07-20 22:47:53,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:53,859 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:47:53,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:47:53,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:47:53,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:47:54,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:54,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:47:54,395 INFO L268 CegarLoopResult]: For program point Id_MCDC_100FINAL(lines 418 424) no Hoare annotation was computed. [2020-07-20 22:47:54,396 INFO L268 CegarLoopResult]: For program point Id_MCDC_100EXIT(lines 418 424) no Hoare annotation was computed. [2020-07-20 22:47:54,396 INFO L271 CegarLoopResult]: At program point Id_MCDC_100ENTRY(lines 418 424) the Hoare annotation is: true [2020-07-20 22:47:54,396 INFO L271 CegarLoopResult]: At program point L422(line 422) the Hoare annotation is: true [2020-07-20 22:47:54,396 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 22:47:54,397 INFO L271 CegarLoopResult]: At program point L403(line 403) the Hoare annotation is: true [2020-07-20 22:47:54,397 INFO L268 CegarLoopResult]: For program point L403-1(line 403) no Hoare annotation was computed. [2020-07-20 22:47:54,397 INFO L271 CegarLoopResult]: At program point Id_MCDC_99ENTRY(lines 398 417) the Hoare annotation is: true [2020-07-20 22:47:54,397 INFO L268 CegarLoopResult]: For program point Id_MCDC_99EXIT(lines 398 417) no Hoare annotation was computed. [2020-07-20 22:47:54,397 INFO L268 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-07-20 22:47:54,397 INFO L268 CegarLoopResult]: For program point L406-2(lines 406 413) no Hoare annotation was computed. [2020-07-20 22:47:54,398 INFO L268 CegarLoopResult]: For program point L404-2(lines 404 414) no Hoare annotation was computed. [2020-07-20 22:47:54,398 INFO L271 CegarLoopResult]: At program point L404-3(lines 404 414) the Hoare annotation is: true [2020-07-20 22:47:54,398 INFO L271 CegarLoopResult]: At program point L404-4(lines 404 414) the Hoare annotation is: true [2020-07-20 22:47:54,398 INFO L268 CegarLoopResult]: For program point Id_MCDC_99FINAL(lines 398 417) no Hoare annotation was computed. [2020-07-20 22:47:54,398 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-07-20 22:47:54,398 INFO L268 CegarLoopResult]: For program point L213(line 213) no Hoare annotation was computed. [2020-07-20 22:47:54,399 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-07-20 22:47:54,399 INFO L268 CegarLoopResult]: For program point L209-2(line 209) no Hoare annotation was computed. [2020-07-20 22:47:54,399 INFO L271 CegarLoopResult]: At program point Id_MCDC_89ENTRY(lines 191 246) the Hoare annotation is: true [2020-07-20 22:47:54,399 INFO L268 CegarLoopResult]: For program point Id_MCDC_89EXIT(lines 191 246) no Hoare annotation was computed. [2020-07-20 22:47:54,399 INFO L268 CegarLoopResult]: For program point L234(lines 234 239) no Hoare annotation was computed. [2020-07-20 22:47:54,399 INFO L268 CegarLoopResult]: For program point L234-1(lines 232 244) no Hoare annotation was computed. [2020-07-20 22:47:54,399 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-07-20 22:47:54,400 INFO L268 CegarLoopResult]: For program point L218-2(line 218) no Hoare annotation was computed. [2020-07-20 22:47:54,400 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-07-20 22:47:54,400 INFO L268 CegarLoopResult]: For program point L202(lines 202 205) no Hoare annotation was computed. [2020-07-20 22:47:54,400 INFO L268 CegarLoopResult]: For program point Id_MCDC_89FINAL(lines 191 246) no Hoare annotation was computed. [2020-07-20 22:47:54,400 INFO L268 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-07-20 22:47:54,400 INFO L268 CegarLoopResult]: For program point L219(line 219) no Hoare annotation was computed. [2020-07-20 22:47:54,400 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-07-20 22:47:54,401 INFO L268 CegarLoopResult]: For program point L215-2(line 215) no Hoare annotation was computed. [2020-07-20 22:47:54,401 INFO L271 CegarLoopResult]: At program point L207(lines 207 223) the Hoare annotation is: true [2020-07-20 22:47:54,401 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-07-20 22:47:54,401 INFO L268 CegarLoopResult]: For program point L232-2(line 232) no Hoare annotation was computed. [2020-07-20 22:47:54,401 INFO L268 CegarLoopResult]: For program point L232-3(line 232) no Hoare annotation was computed. [2020-07-20 22:47:54,401 INFO L268 CegarLoopResult]: For program point L232-5(lines 232 244) no Hoare annotation was computed. [2020-07-20 22:47:54,401 INFO L268 CegarLoopResult]: For program point L224-1(lines 224 231) no Hoare annotation was computed. [2020-07-20 22:47:54,402 INFO L271 CegarLoopResult]: At program point L224-3(lines 224 231) the Hoare annotation is: true [2020-07-20 22:47:54,402 INFO L268 CegarLoopResult]: For program point L224-4(lines 224 231) no Hoare annotation was computed. [2020-07-20 22:47:54,402 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-07-20 22:47:54,402 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-07-20 22:47:54,402 INFO L268 CegarLoopResult]: For program point L212-2(line 212) no Hoare annotation was computed. [2020-07-20 22:47:54,402 INFO L268 CegarLoopResult]: For program point L200(lines 200 206) no Hoare annotation was computed. [2020-07-20 22:47:54,402 INFO L268 CegarLoopResult]: For program point L200-2(lines 200 206) no Hoare annotation was computed. [2020-07-20 22:47:54,403 INFO L268 CegarLoopResult]: For program point L196(lines 196 199) no Hoare annotation was computed. [2020-07-20 22:47:54,403 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 425 456) the Hoare annotation is: true [2020-07-20 22:47:54,403 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 425 456) no Hoare annotation was computed. [2020-07-20 22:47:54,403 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 425 456) no Hoare annotation was computed. [2020-07-20 22:47:54,403 INFO L271 CegarLoopResult]: At program point L455(line 455) the Hoare annotation is: true [2020-07-20 22:47:54,403 INFO L268 CegarLoopResult]: For program point L450(lines 450 453) no Hoare annotation was computed. [2020-07-20 22:47:54,404 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-20 22:47:54,404 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-20 22:47:54,404 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-20 22:47:54,404 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-20 22:47:54,404 INFO L268 CegarLoopResult]: For program point L386-1(line 386) no Hoare annotation was computed. [2020-07-20 22:47:54,404 INFO L268 CegarLoopResult]: For program point L374-2(lines 374 391) no Hoare annotation was computed. [2020-07-20 22:47:54,405 INFO L271 CegarLoopResult]: At program point L374-3(lines 374 391) the Hoare annotation is: true [2020-07-20 22:47:54,405 INFO L268 CegarLoopResult]: For program point L374-4(lines 374 391) no Hoare annotation was computed. [2020-07-20 22:47:54,405 INFO L271 CegarLoopResult]: At program point Id_MCDC_97ENTRY(lines 329 397) the Hoare annotation is: true [2020-07-20 22:47:54,405 INFO L268 CegarLoopResult]: For program point Id_MCDC_97EXIT(lines 329 397) no Hoare annotation was computed. [2020-07-20 22:47:54,405 INFO L268 CegarLoopResult]: For program point L387(lines 387 390) no Hoare annotation was computed. [2020-07-20 22:47:54,405 INFO L268 CegarLoopResult]: For program point L354(lines 354 395) no Hoare annotation was computed. [2020-07-20 22:47:54,405 INFO L268 CegarLoopResult]: For program point L350-2(lines 350 353) no Hoare annotation was computed. [2020-07-20 22:47:54,406 INFO L264 CegarLoopResult]: At program point L350-3(lines 350 353) the Hoare annotation is: (= 6144 Id_MCDC_97_~Id_MCDC_123~0) [2020-07-20 22:47:54,406 INFO L268 CegarLoopResult]: For program point L350-4(lines 330 397) no Hoare annotation was computed. [2020-07-20 22:47:54,406 INFO L271 CegarLoopResult]: At program point L363(line 363) the Hoare annotation is: true [2020-07-20 22:47:54,406 INFO L268 CegarLoopResult]: For program point L363-1(lines 363 366) no Hoare annotation was computed. [2020-07-20 22:47:54,406 INFO L268 CegarLoopResult]: For program point Id_MCDC_97FINAL(lines 329 397) no Hoare annotation was computed. [2020-07-20 22:47:54,406 INFO L271 CegarLoopResult]: At program point L359(line 359) the Hoare annotation is: true [2020-07-20 22:47:54,407 INFO L268 CegarLoopResult]: For program point L359-1(lines 359 362) no Hoare annotation was computed. [2020-07-20 22:47:54,407 INFO L271 CegarLoopResult]: At program point L376(line 376) the Hoare annotation is: true [2020-07-20 22:47:54,407 INFO L268 CegarLoopResult]: For program point L376-1(lines 376 379) no Hoare annotation was computed. [2020-07-20 22:47:54,407 INFO L268 CegarLoopResult]: For program point L356-2(lines 356 394) no Hoare annotation was computed. [2020-07-20 22:47:54,407 INFO L271 CegarLoopResult]: At program point L356-3(lines 356 394) the Hoare annotation is: true [2020-07-20 22:47:54,407 INFO L271 CegarLoopResult]: At program point L369(line 369) the Hoare annotation is: true [2020-07-20 22:47:54,408 INFO L268 CegarLoopResult]: For program point L369-1(lines 369 372) no Hoare annotation was computed. [2020-07-20 22:47:54,408 INFO L271 CegarLoopResult]: At program point L386(line 386) the Hoare annotation is: true [2020-07-20 22:47:54,408 INFO L271 CegarLoopResult]: At program point Id_MCDC_95ENTRY(lines 278 297) the Hoare annotation is: true [2020-07-20 22:47:54,408 INFO L268 CegarLoopResult]: For program point Id_MCDC_95EXIT(lines 278 297) no Hoare annotation was computed. [2020-07-20 22:47:54,408 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-07-20 22:47:54,408 INFO L264 CegarLoopResult]: At program point L294(line 294) the Hoare annotation is: (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) [2020-07-20 22:47:54,409 INFO L264 CegarLoopResult]: At program point L296-2(line 296) the Hoare annotation is: (and |Id_MCDC_95_#t~short23| (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4)))) [2020-07-20 22:47:54,409 INFO L268 CegarLoopResult]: For program point L294-1(line 294) no Hoare annotation was computed. [2020-07-20 22:47:54,409 INFO L268 CegarLoopResult]: For program point L296-3(line 296) no Hoare annotation was computed. [2020-07-20 22:47:54,409 INFO L264 CegarLoopResult]: At program point L288(line 288) the Hoare annotation is: (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) [2020-07-20 22:47:54,409 INFO L268 CegarLoopResult]: For program point L288-1(line 288) no Hoare annotation was computed. [2020-07-20 22:47:54,409 INFO L268 CegarLoopResult]: For program point L286(lines 286 293) no Hoare annotation was computed. [2020-07-20 22:47:54,410 INFO L268 CegarLoopResult]: For program point L286-2(lines 286 293) no Hoare annotation was computed. [2020-07-20 22:47:54,410 INFO L268 CegarLoopResult]: For program point L282(lines 282 285) no Hoare annotation was computed. [2020-07-20 22:47:54,410 INFO L264 CegarLoopResult]: At program point L295(line 295) the Hoare annotation is: (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) [2020-07-20 22:47:54,410 INFO L268 CegarLoopResult]: For program point L295-1(line 295) no Hoare annotation was computed. [2020-07-20 22:47:54,410 INFO L268 CegarLoopResult]: For program point Id_MCDC_95FINAL(lines 278 297) no Hoare annotation was computed. [2020-07-20 22:47:54,410 INFO L268 CegarLoopResult]: For program point L316(lines 316 321) no Hoare annotation was computed. [2020-07-20 22:47:54,410 INFO L268 CegarLoopResult]: For program point L316-1(lines 314 326) no Hoare annotation was computed. [2020-07-20 22:47:54,411 INFO L268 CegarLoopResult]: For program point L314(line 314) no Hoare annotation was computed. [2020-07-20 22:47:54,411 INFO L268 CegarLoopResult]: For program point L314-2(line 314) no Hoare annotation was computed. [2020-07-20 22:47:54,411 INFO L268 CegarLoopResult]: For program point L314-3(line 314) no Hoare annotation was computed. [2020-07-20 22:47:54,411 INFO L268 CegarLoopResult]: For program point L314-5(lines 314 326) no Hoare annotation was computed. [2020-07-20 22:47:54,411 INFO L268 CegarLoopResult]: For program point L306-1(lines 306 313) no Hoare annotation was computed. [2020-07-20 22:47:54,411 INFO L271 CegarLoopResult]: At program point L306-3(lines 306 313) the Hoare annotation is: true [2020-07-20 22:47:54,411 INFO L268 CegarLoopResult]: For program point L302(lines 302 305) no Hoare annotation was computed. [2020-07-20 22:47:54,412 INFO L268 CegarLoopResult]: For program point L306-4(lines 306 313) no Hoare annotation was computed. [2020-07-20 22:47:54,412 INFO L268 CegarLoopResult]: For program point Id_MCDC_96FINAL(lines 298 328) no Hoare annotation was computed. [2020-07-20 22:47:54,412 INFO L268 CegarLoopResult]: For program point L309(lines 309 312) no Hoare annotation was computed. [2020-07-20 22:47:54,412 INFO L271 CegarLoopResult]: At program point Id_MCDC_96ENTRY(lines 298 328) the Hoare annotation is: true [2020-07-20 22:47:54,412 INFO L268 CegarLoopResult]: For program point Id_MCDC_96EXIT(lines 298 328) no Hoare annotation was computed. [2020-07-20 22:47:54,412 INFO L268 CegarLoopResult]: For program point L253(lines 253 267) no Hoare annotation was computed. [2020-07-20 22:47:54,412 INFO L271 CegarLoopResult]: At program point Id_MCDC_92ENTRY(lines 247 277) the Hoare annotation is: true [2020-07-20 22:47:54,413 INFO L268 CegarLoopResult]: For program point Id_MCDC_92EXIT(lines 247 277) no Hoare annotation was computed. [2020-07-20 22:47:54,413 INFO L268 CegarLoopResult]: For program point Id_MCDC_92FINAL(lines 247 277) no Hoare annotation was computed. [2020-07-20 22:47:54,413 INFO L271 CegarLoopResult]: At program point L270(line 270) the Hoare annotation is: true [2020-07-20 22:47:54,413 INFO L268 CegarLoopResult]: For program point L270-1(line 270) no Hoare annotation was computed. [2020-07-20 22:47:54,413 INFO L268 CegarLoopResult]: For program point L268-1(lines 248 277) no Hoare annotation was computed. [2020-07-20 22:47:54,413 INFO L268 CegarLoopResult]: For program point L268-2(lines 268 275) no Hoare annotation was computed. [2020-07-20 22:47:54,413 INFO L268 CegarLoopResult]: For program point L259(lines 259 267) no Hoare annotation was computed. [2020-07-20 22:47:54,414 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:47:54,414 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:47:54,414 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:47:54,414 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:47:54,414 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 22:47:54,414 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:47:54,415 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:47:54,415 INFO L268 CegarLoopResult]: For program point avoid_zeroEXIT(lines 7 13) no Hoare annotation was computed. [2020-07-20 22:47:54,415 INFO L268 CegarLoopResult]: For program point L9(lines 9 12) no Hoare annotation was computed. [2020-07-20 22:47:54,415 INFO L268 CegarLoopResult]: For program point L9-2(lines 7 13) no Hoare annotation was computed. [2020-07-20 22:47:54,415 INFO L271 CegarLoopResult]: At program point avoid_zeroENTRY(lines 7 13) the Hoare annotation is: true [2020-07-20 22:47:54,415 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 457 464) the Hoare annotation is: true [2020-07-20 22:47:54,415 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 22:47:54,416 INFO L268 CegarLoopResult]: For program point L459(lines 459 462) no Hoare annotation was computed. [2020-07-20 22:47:54,416 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 457 464) no Hoare annotation was computed. [2020-07-20 22:47:54,416 INFO L268 CegarLoopResult]: For program point L459-2(lines 457 464) no Hoare annotation was computed. [2020-07-20 22:47:54,416 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 461) no Hoare annotation was computed. [2020-07-20 22:47:54,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:47:54 BoogieIcfgContainer [2020-07-20 22:47:54,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:47:54,441 INFO L168 Benchmark]: Toolchain (without parser) took 5477.52 ms. Allocated memory was 136.3 MB in the beginning and 253.8 MB in the end (delta: 117.4 MB). Free memory was 100.4 MB in the beginning and 206.2 MB in the end (delta: -105.9 MB). Peak memory consumption was 138.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:47:54,442 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-20 22:47:54,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.20 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 99.9 MB in the beginning and 171.8 MB in the end (delta: -71.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-07-20 22:47:54,443 INFO L168 Benchmark]: Boogie Preprocessor took 101.01 ms. Allocated memory is still 201.3 MB. Free memory was 171.8 MB in the beginning and 167.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-20 22:47:54,444 INFO L168 Benchmark]: RCFGBuilder took 1276.28 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 104.0 MB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:47:54,445 INFO L168 Benchmark]: TraceAbstraction took 3492.16 ms. Allocated memory was 201.3 MB in the beginning and 253.8 MB in the end (delta: 52.4 MB). Free memory was 104.0 MB in the beginning and 206.2 MB in the end (delta: -102.2 MB). Peak memory consumption was 76.9 MB. Max. memory is 7.1 GB. [2020-07-20 22:47:54,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 598.20 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 99.9 MB in the beginning and 171.8 MB in the end (delta: -71.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.01 ms. Allocated memory is still 201.3 MB. Free memory was 171.8 MB in the beginning and 167.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1276.28 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 104.0 MB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3492.16 ms. Allocated memory was 201.3 MB in the beginning and 253.8 MB in the end (delta: 52.4 MB). Free memory was 104.0 MB in the beginning and 206.2 MB in the end (delta: -102.2 MB). Peak memory consumption was 76.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 461]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: 6144 == Id_MCDC_123 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 861 SDtfs, 69 SDslu, 1302 SDs, 0 SdLazy, 49 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 45 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 182 PreInvPairs, 204 NumberOfFragments, 66 HoareAnnotationTreeSize, 182 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 34 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 260 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 14247 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1817 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 43/43 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...