/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:24:06,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:24:06,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:24:06,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:24:06,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:24:06,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:24:06,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:24:06,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:24:06,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:24:06,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:24:06,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:24:06,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:24:06,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:24:06,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:24:06,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:24:06,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:24:06,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:24:06,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:24:06,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:24:06,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:24:06,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:24:06,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:24:06,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:24:06,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:24:06,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:24:06,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:24:06,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:24:06,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:24:06,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:24:06,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:24:06,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:24:06,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:24:06,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:24:06,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:24:06,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:24:06,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:24:06,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:24:06,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:24:06,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:24:06,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:24:06,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:24:06,597 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 [2020-04-17 18:24:06,611 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:24:06,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:24:06,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:24:06,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:24:06,613 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:24:06,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:24:06,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:24:06,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:24:06,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:24:06,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:24:06,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:24:06,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:24:06,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:24:06,615 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:24:06,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:24:06,615 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:24:06,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:24:06,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:24:06,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:24:06,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:24:06,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:24:06,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:24:06,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:24:06,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:24:06,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:24:06,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:24:06,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:24:06,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:24:06,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 18:24:06,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:24:06,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:24:06,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:24:06,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:24:06,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:24:06,898 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:24:06,899 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2020-04-17 18:24:06,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2582aa254/8d8a4539c26147f9bce3f7794709a27e/FLAG16d093853 [2020-04-17 18:24:07,471 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:24:07,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2020-04-17 18:24:07,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2582aa254/8d8a4539c26147f9bce3f7794709a27e/FLAG16d093853 [2020-04-17 18:24:07,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2582aa254/8d8a4539c26147f9bce3f7794709a27e [2020-04-17 18:24:07,827 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:24:07,843 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:24:07,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:24:07,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:24:07,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:24:07,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:24:07" (1/1) ... [2020-04-17 18:24:07,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f87ec12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:07, skipping insertion in model container [2020-04-17 18:24:07,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:24:07" (1/1) ... [2020-04-17 18:24:07,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:24:07,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:24:08,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:24:08,457 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:24:08,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:24:08,593 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:24:08,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08 WrapperNode [2020-04-17 18:24:08,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:24:08,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:24:08,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:24:08,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:24:08,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (1/1) ... [2020-04-17 18:24:08,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (1/1) ... [2020-04-17 18:24:08,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:24:08,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:24:08,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:24:08,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:24:08,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (1/1) ... [2020-04-17 18:24:08,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (1/1) ... [2020-04-17 18:24:08,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (1/1) ... [2020-04-17 18:24:08,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (1/1) ... [2020-04-17 18:24:08,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (1/1) ... [2020-04-17 18:24:08,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (1/1) ... [2020-04-17 18:24:08,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (1/1) ... [2020-04-17 18:24:08,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:24:08,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:24:08,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:24:08,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:24:08,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (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 [2020-04-17 18:24:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:24:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 18:24:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:24:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:24:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 18:24:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 18:24:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 18:24:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 18:24:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 18:24:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 18:24:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-17 18:24:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-17 18:24:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 18:24:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:24:08,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:24:08,747 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 18:24:09,150 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:24:09,150 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 18:24:09,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:24:09 BoogieIcfgContainer [2020-04-17 18:24:09,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:24:09,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:24:09,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:24:09,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:24:09,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:24:07" (1/3) ... [2020-04-17 18:24:09,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468b084e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:24:09, skipping insertion in model container [2020-04-17 18:24:09,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:24:08" (2/3) ... [2020-04-17 18:24:09,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468b084e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:24:09, skipping insertion in model container [2020-04-17 18:24:09,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:24:09" (3/3) ... [2020-04-17 18:24:09,163 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2020-04-17 18:24:09,172 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:24:09,173 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:24:09,180 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 18:24:09,181 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:24:09,213 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,213 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,213 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,214 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,214 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,214 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,215 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,215 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,215 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,215 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,216 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,216 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,217 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,217 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,217 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,217 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,217 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,218 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,218 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,218 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,218 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,218 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,219 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,220 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,224 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,225 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,225 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,225 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,231 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,231 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,231 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,232 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,235 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,236 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,236 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,236 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,241 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,241 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,241 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,242 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:24:09,253 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 18:24:09,268 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:24:09,269 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:24:09,269 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:24:09,269 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:24:09,269 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:24:09,269 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:24:09,269 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:24:09,269 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:24:09,285 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-04-17 18:24:09,287 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-04-17 18:24:09,335 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-04-17 18:24:09,335 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:24:09,341 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-04-17 18:24:09,344 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-04-17 18:24:09,373 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-04-17 18:24:09,373 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:24:09,374 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-04-17 18:24:09,377 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-04-17 18:24:09,378 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:24:11,329 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-04-17 18:24:11,409 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-04-17 18:24:11,410 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-04-17 18:24:11,416 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-04-17 18:24:11,537 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-04-17 18:24:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-04-17 18:24:11,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 18:24:11,557 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:24:11,558 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:24:11,559 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:24:11,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:24:11,566 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-04-17 18:24:11,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:24:11,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515350204] [2020-04-17 18:24:11,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:24:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:24:11,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:24:11,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515350204] [2020-04-17 18:24:11,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:24:11,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:24:11,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425555130] [2020-04-17 18:24:11,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-17 18:24:11,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:24:11,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-17 18:24:11,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 18:24:11,848 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-04-17 18:24:11,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:24:11,908 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-04-17 18:24:11,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-17 18:24:11,910 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-04-17 18:24:11,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:24:11,946 INFO L225 Difference]: With dead ends: 1450 [2020-04-17 18:24:11,946 INFO L226 Difference]: Without dead ends: 1194 [2020-04-17 18:24:11,947 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 18:24:11,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-04-17 18:24:12,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-04-17 18:24:12,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-04-17 18:24:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-04-17 18:24:12,115 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-04-17 18:24:12,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:24:12,116 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-04-17 18:24:12,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-17 18:24:12,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-04-17 18:24:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 18:24:12,145 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:24:12,146 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:24:12,147 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:24:12,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:24:12,147 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-04-17 18:24:12,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:24:12,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034562352] [2020-04-17 18:24:12,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:24:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:24:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:24:12,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034562352] [2020-04-17 18:24:12,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:24:12,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:24:12,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201404127] [2020-04-17 18:24:12,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:24:12,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:24:12,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:24:12,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:24:12,292 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-04-17 18:24:12,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:24:12,339 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-04-17 18:24:12,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:24:12,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 18:24:12,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:24:12,350 INFO L225 Difference]: With dead ends: 1322 [2020-04-17 18:24:12,350 INFO L226 Difference]: Without dead ends: 1066 [2020-04-17 18:24:12,351 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:24:12,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-04-17 18:24:12,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-04-17 18:24:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-04-17 18:24:12,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-04-17 18:24:12,394 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-04-17 18:24:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:24:12,394 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-04-17 18:24:12,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:24:12,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-04-17 18:24:12,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 18:24:12,402 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:24:12,402 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:24:12,402 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:24:12,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:24:12,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1585408540, now seen corresponding path program 1 times [2020-04-17 18:24:12,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:24:12,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106736040] [2020-04-17 18:24:12,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:24:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:24:12,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:24:12,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106736040] [2020-04-17 18:24:12,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:24:12,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:24:12,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664989466] [2020-04-17 18:24:12,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:24:12,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:24:12,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:24:12,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:24:12,503 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-04-17 18:24:12,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:24:12,534 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-04-17 18:24:12,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:24:12,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 18:24:12,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:24:12,542 INFO L225 Difference]: With dead ends: 1162 [2020-04-17 18:24:12,542 INFO L226 Difference]: Without dead ends: 970 [2020-04-17 18:24:12,543 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:24:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-04-17 18:24:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-04-17 18:24:12,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-04-17 18:24:12,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-04-17 18:24:12,579 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-04-17 18:24:12,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:24:12,579 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-04-17 18:24:12,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:24:12,580 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-04-17 18:24:12,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 18:24:12,581 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:24:12,581 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:24:12,581 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:24:12,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:24:12,582 INFO L82 PathProgramCache]: Analyzing trace with hash -333651602, now seen corresponding path program 1 times [2020-04-17 18:24:12,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:24:12,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700156173] [2020-04-17 18:24:12,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:24:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:24:12,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:24:12,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700156173] [2020-04-17 18:24:12,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:24:12,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:24:12,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999336732] [2020-04-17 18:24:12,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:24:12,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:24:12,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:24:12,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:24:12,680 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-04-17 18:24:12,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:24:12,739 INFO L93 Difference]: Finished difference Result 1210 states and 4168 transitions. [2020-04-17 18:24:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:24:12,740 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 18:24:12,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:24:12,745 INFO L225 Difference]: With dead ends: 1210 [2020-04-17 18:24:12,745 INFO L226 Difference]: Without dead ends: 556 [2020-04-17 18:24:12,745 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:24:12,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-04-17 18:24:12,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2020-04-17 18:24:12,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-04-17 18:24:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1826 transitions. [2020-04-17 18:24:12,765 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1826 transitions. Word has length 13 [2020-04-17 18:24:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:24:12,766 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 1826 transitions. [2020-04-17 18:24:12,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:24:12,766 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1826 transitions. [2020-04-17 18:24:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 18:24:12,767 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:24:12,767 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:24:12,767 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:24:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:24:12,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1137763088, now seen corresponding path program 1 times [2020-04-17 18:24:12,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:24:12,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441917564] [2020-04-17 18:24:12,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:24:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:24:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:24:12,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441917564] [2020-04-17 18:24:12,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:24:12,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:24:12,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166382873] [2020-04-17 18:24:12,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:24:12,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:24:12,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:24:12,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:24:12,857 INFO L87 Difference]: Start difference. First operand 556 states and 1826 transitions. Second operand 4 states. [2020-04-17 18:24:12,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:24:12,891 INFO L93 Difference]: Finished difference Result 604 states and 1918 transitions. [2020-04-17 18:24:12,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:24:12,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-04-17 18:24:12,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:24:12,895 INFO L225 Difference]: With dead ends: 604 [2020-04-17 18:24:12,895 INFO L226 Difference]: Without dead ends: 508 [2020-04-17 18:24:12,896 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:24:12,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-04-17 18:24:12,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-04-17 18:24:12,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-04-17 18:24:12,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 1638 transitions. [2020-04-17 18:24:12,912 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 1638 transitions. Word has length 14 [2020-04-17 18:24:12,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:24:12,913 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 1638 transitions. [2020-04-17 18:24:12,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:24:12,913 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 1638 transitions. [2020-04-17 18:24:12,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 18:24:12,914 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:24:12,914 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:24:12,914 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:24:12,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:24:12,915 INFO L82 PathProgramCache]: Analyzing trace with hash -910941394, now seen corresponding path program 1 times [2020-04-17 18:24:12,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:24:12,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031044504] [2020-04-17 18:24:12,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:24:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:24:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:24:12,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031044504] [2020-04-17 18:24:12,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:24:12,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:24:12,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875960044] [2020-04-17 18:24:12,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:24:12,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:24:12,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:24:12,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:24:12,992 INFO L87 Difference]: Start difference. First operand 508 states and 1638 transitions. Second operand 5 states. [2020-04-17 18:24:13,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:24:13,041 INFO L93 Difference]: Finished difference Result 640 states and 1990 transitions. [2020-04-17 18:24:13,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:24:13,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-04-17 18:24:13,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:24:13,044 INFO L225 Difference]: With dead ends: 640 [2020-04-17 18:24:13,044 INFO L226 Difference]: Without dead ends: 304 [2020-04-17 18:24:13,045 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:24:13,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-04-17 18:24:13,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-04-17 18:24:13,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-04-17 18:24:13,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 882 transitions. [2020-04-17 18:24:13,055 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 882 transitions. Word has length 15 [2020-04-17 18:24:13,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:24:13,055 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 882 transitions. [2020-04-17 18:24:13,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:24:13,055 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 882 transitions. [2020-04-17 18:24:13,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 18:24:13,056 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:24:13,057 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:24:13,057 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:24:13,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:24:13,057 INFO L82 PathProgramCache]: Analyzing trace with hash -583625760, now seen corresponding path program 1 times [2020-04-17 18:24:13,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:24:13,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009592437] [2020-04-17 18:24:13,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:24:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:24:13,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:24:13,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009592437] [2020-04-17 18:24:13,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:24:13,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:24:13,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558063871] [2020-04-17 18:24:13,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:24:13,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:24:13,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:24:13,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:24:13,144 INFO L87 Difference]: Start difference. First operand 304 states and 882 transitions. Second operand 5 states. [2020-04-17 18:24:13,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:24:13,201 INFO L93 Difference]: Finished difference Result 388 states and 1110 transitions. [2020-04-17 18:24:13,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:24:13,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-04-17 18:24:13,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:24:13,204 INFO L225 Difference]: With dead ends: 388 [2020-04-17 18:24:13,204 INFO L226 Difference]: Without dead ends: 172 [2020-04-17 18:24:13,204 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:24:13,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-04-17 18:24:13,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-04-17 18:24:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-04-17 18:24:13,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 452 transitions. [2020-04-17 18:24:13,234 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 452 transitions. Word has length 17 [2020-04-17 18:24:13,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:24:13,234 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 452 transitions. [2020-04-17 18:24:13,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:24:13,234 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 452 transitions. [2020-04-17 18:24:13,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 18:24:13,235 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:24:13,235 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:24:13,235 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:24:13,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:24:13,236 INFO L82 PathProgramCache]: Analyzing trace with hash -180488596, now seen corresponding path program 1 times [2020-04-17 18:24:13,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:24:13,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578792643] [2020-04-17 18:24:13,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:24:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:24:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:24:13,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578792643] [2020-04-17 18:24:13,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:24:13,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:24:13,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190932483] [2020-04-17 18:24:13,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:24:13,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:24:13,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:24:13,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:24:13,334 INFO L87 Difference]: Start difference. First operand 172 states and 452 transitions. Second operand 5 states. [2020-04-17 18:24:13,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:24:13,375 INFO L93 Difference]: Finished difference Result 148 states and 376 transitions. [2020-04-17 18:24:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:24:13,376 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-04-17 18:24:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:24:13,376 INFO L225 Difference]: With dead ends: 148 [2020-04-17 18:24:13,376 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 18:24:13,377 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 18:24:13,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 18:24:13,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 18:24:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 18:24:13,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 18:24:13,377 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-04-17 18:24:13,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:24:13,378 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 18:24:13,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:24:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 18:24:13,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 18:24:13,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:24:13 BasicIcfg [2020-04-17 18:24:13,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 18:24:13,391 INFO L168 Benchmark]: Toolchain (without parser) took 5560.58 ms. Allocated memory was 135.3 MB in the beginning and 308.8 MB in the end (delta: 173.5 MB). Free memory was 98.2 MB in the beginning and 258.0 MB in the end (delta: -159.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-04-17 18:24:13,392 INFO L168 Benchmark]: CDTParser took 1.42 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-17 18:24:13,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.26 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 96.2 MB in the beginning and 152.9 MB in the end (delta: -56.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-17 18:24:13,395 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.59 ms. Allocated memory is still 199.2 MB. Free memory was 152.9 MB in the beginning and 150.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-17 18:24:13,396 INFO L168 Benchmark]: Boogie Preprocessor took 26.16 ms. Allocated memory is still 199.2 MB. Free memory was 150.7 MB in the beginning and 149.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-04-17 18:24:13,400 INFO L168 Benchmark]: RCFGBuilder took 486.36 ms. Allocated memory is still 199.2 MB. Free memory was 149.2 MB in the beginning and 124.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-04-17 18:24:13,401 INFO L168 Benchmark]: TraceAbstraction took 4230.91 ms. Allocated memory was 199.2 MB in the beginning and 308.8 MB in the end (delta: 109.6 MB). Free memory was 123.9 MB in the beginning and 258.0 MB in the end (delta: -134.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 18:24:13,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42 ms. Allocated memory is still 135.3 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 749.26 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 96.2 MB in the beginning and 152.9 MB in the end (delta: -56.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.59 ms. Allocated memory is still 199.2 MB. Free memory was 152.9 MB in the beginning and 150.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.16 ms. Allocated memory is still 199.2 MB. Free memory was 150.7 MB in the beginning and 149.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 486.36 ms. Allocated memory is still 199.2 MB. Free memory was 149.2 MB in the beginning and 124.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4230.91 ms. Allocated memory was 199.2 MB in the beginning and 308.8 MB in the end (delta: 109.6 MB). Free memory was 123.9 MB in the beginning and 258.0 MB in the end (delta: -134.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1045 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 234 SDtfs, 270 SDslu, 321 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 3999 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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...