/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:08:13,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:08:13,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:08:13,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:08:13,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:08:13,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:08:13,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:08:13,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:08:13,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:08:13,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:08:13,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:08:13,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:08:13,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:08:13,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:08:13,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:08:13,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:08:13,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:08:13,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:08:13,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:08:13,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:08:13,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:08:13,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:08:13,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:08:13,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:08:13,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:08:13,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:08:13,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:08:13,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:08:13,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:08:13,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:08:13,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:08:13,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:08:13,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:08:13,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:08:13,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:08:13,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:08:13,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:08:13,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:08:13,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:08:13,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:08:13,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:08:13,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:08:13,695 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:08:13,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:08:13,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:08:13,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:08:13,698 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:08:13,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:08:13,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:08:13,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:08:13,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:08:13,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:08:13,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:08:13,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:08:13,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:08:13,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:08:13,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:08:13,703 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:08:13,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:08:13,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:08:13,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:08:13,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:08:13,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:08:13,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:08:13,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:08:13,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:08:13,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:08:13,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:08:13,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:08:13,705 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:08:13,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:08:14,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:08:14,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:08:14,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:08:14,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:08:14,081 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:08:14,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2020-10-21 23:08:14,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f380c4fc/7654eddf0c5b494b9c98b350feabaee1/FLAGde295d558 [2020-10-21 23:08:14,742 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:08:14,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2020-10-21 23:08:14,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f380c4fc/7654eddf0c5b494b9c98b350feabaee1/FLAGde295d558 [2020-10-21 23:08:15,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f380c4fc/7654eddf0c5b494b9c98b350feabaee1 [2020-10-21 23:08:15,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:08:15,043 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:08:15,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:08:15,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:08:15,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:08:15,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@745ca6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15, skipping insertion in model container [2020-10-21 23:08:15,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:08:15,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:08:15,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:08:15,559 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:08:15,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:08:15,685 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:08:15,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15 WrapperNode [2020-10-21 23:08:15,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:08:15,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:08:15,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:08:15,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:08:15,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:08:15,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:08:15,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:08:15,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:08:15,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (1/1) ... [2020-10-21 23:08:15,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:08:15,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:08:15,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:08:15,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:08:15,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (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 [2020-10-21 23:08:15,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:08:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:08:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:08:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:08:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:08:15,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:08:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:08:15,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:08:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:08:15,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:08:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:08:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:08:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:08:15,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:08:15,866 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:08:16,226 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:08:16,226 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:08:16,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:08:16 BoogieIcfgContainer [2020-10-21 23:08:16,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:08:16,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:08:16,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:08:16,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:08:16,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:08:15" (1/3) ... [2020-10-21 23:08:16,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44db6f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:08:16, skipping insertion in model container [2020-10-21 23:08:16,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:08:15" (2/3) ... [2020-10-21 23:08:16,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44db6f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:08:16, skipping insertion in model container [2020-10-21 23:08:16,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:08:16" (3/3) ... [2020-10-21 23:08:16,242 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt.i [2020-10-21 23:08:16,254 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:08:16,254 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:08:16,262 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:08:16,263 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:08:16,298 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,300 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,300 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,303 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,303 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,304 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,304 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,304 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,325 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,325 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,326 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,332 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,332 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:08:16,344 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:08:16,359 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 23:08:16,380 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:08:16,380 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:08:16,381 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:08:16,381 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:08:16,381 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:08:16,381 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:08:16,381 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:08:16,381 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:08:16,395 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:08:16,395 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 23:08:16,398 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 23:08:16,400 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-21 23:08:16,450 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-21 23:08:16,450 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:08:16,456 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-21 23:08:16,459 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-10-21 23:08:17,574 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-10-21 23:08:18,289 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 23:08:18,397 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-10-21 23:08:18,397 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-10-21 23:08:18,404 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-10-21 23:08:18,427 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-21 23:08:18,429 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-21 23:08:18,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 23:08:18,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:18,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:18,438 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:18,444 INFO L82 PathProgramCache]: Analyzing trace with hash -831263322, now seen corresponding path program 1 times [2020-10-21 23:08:18,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:18,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753752449] [2020-10-21 23:08:18,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:18,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753752449] [2020-10-21 23:08:18,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:18,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:08:18,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245439273] [2020-10-21 23:08:18,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:08:18,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:18,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:08:18,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:08:18,788 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-21 23:08:18,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:18,829 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-21 23:08:18,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:08:18,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 23:08:18,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:18,847 INFO L225 Difference]: With dead ends: 214 [2020-10-21 23:08:18,847 INFO L226 Difference]: Without dead ends: 166 [2020-10-21 23:08:18,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:08:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-21 23:08:18,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-21 23:08:18,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-21 23:08:18,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-21 23:08:18,910 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-21 23:08:18,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:18,911 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-21 23:08:18,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:08:18,912 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-21 23:08:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:08:18,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:18,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:18,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:08:18,914 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:18,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:18,914 INFO L82 PathProgramCache]: Analyzing trace with hash 639961, now seen corresponding path program 1 times [2020-10-21 23:08:18,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:18,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95049959] [2020-10-21 23:08:18,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:18,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:18,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95049959] [2020-10-21 23:08:18,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:18,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:08:18,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220384152] [2020-10-21 23:08:18,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:08:19,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:19,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:08:19,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:08:19,000 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-21 23:08:19,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:19,035 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-10-21 23:08:19,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:08:19,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 23:08:19,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:19,038 INFO L225 Difference]: With dead ends: 202 [2020-10-21 23:08:19,038 INFO L226 Difference]: Without dead ends: 130 [2020-10-21 23:08:19,039 INFO L677 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 [2020-10-21 23:08:19,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-21 23:08:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-21 23:08:19,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-21 23:08:19,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-10-21 23:08:19,055 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-10-21 23:08:19,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:19,055 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-10-21 23:08:19,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:08:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-10-21 23:08:19,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 23:08:19,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:19,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:19,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:08:19,058 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:19,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:19,058 INFO L82 PathProgramCache]: Analyzing trace with hash 19828348, now seen corresponding path program 1 times [2020-10-21 23:08:19,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:19,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575906795] [2020-10-21 23:08:19,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:19,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575906795] [2020-10-21 23:08:19,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:19,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:08:19,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106245569] [2020-10-21 23:08:19,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:08:19,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:19,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:08:19,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:08:19,195 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-10-21 23:08:19,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:19,232 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-10-21 23:08:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:08:19,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-21 23:08:19,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:19,234 INFO L225 Difference]: With dead ends: 148 [2020-10-21 23:08:19,234 INFO L226 Difference]: Without dead ends: 112 [2020-10-21 23:08:19,235 INFO L677 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 [2020-10-21 23:08:19,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-21 23:08:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-21 23:08:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-21 23:08:19,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-10-21 23:08:19,247 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-10-21 23:08:19,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:19,247 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-10-21 23:08:19,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:08:19,248 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-10-21 23:08:19,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:08:19,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:19,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:19,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:08:19,249 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:19,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:19,250 INFO L82 PathProgramCache]: Analyzing trace with hash 595600524, now seen corresponding path program 1 times [2020-10-21 23:08:19,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:19,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293242868] [2020-10-21 23:08:19,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:19,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293242868] [2020-10-21 23:08:19,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:19,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:08:19,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298143677] [2020-10-21 23:08:19,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:08:19,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:19,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:08:19,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:08:19,309 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-10-21 23:08:19,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:19,352 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-10-21 23:08:19,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:08:19,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-21 23:08:19,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:19,354 INFO L225 Difference]: With dead ends: 109 [2020-10-21 23:08:19,354 INFO L226 Difference]: Without dead ends: 85 [2020-10-21 23:08:19,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:08:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-21 23:08:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-21 23:08:19,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-21 23:08:19,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-10-21 23:08:19,362 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-10-21 23:08:19,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:19,363 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-10-21 23:08:19,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:08:19,363 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-10-21 23:08:19,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:08:19,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:19,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:19,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:08:19,365 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:19,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:19,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1088953398, now seen corresponding path program 1 times [2020-10-21 23:08:19,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:19,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113839343] [2020-10-21 23:08:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:19,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:19,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113839343] [2020-10-21 23:08:19,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:19,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:08:19,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682443985] [2020-10-21 23:08:19,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:08:19,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:19,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:08:19,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:08:19,436 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-10-21 23:08:19,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:19,479 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-10-21 23:08:19,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:08:19,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-21 23:08:19,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:19,481 INFO L225 Difference]: With dead ends: 80 [2020-10-21 23:08:19,481 INFO L226 Difference]: Without dead ends: 72 [2020-10-21 23:08:19,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:08:19,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-21 23:08:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-21 23:08:19,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-21 23:08:19,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-10-21 23:08:19,487 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-10-21 23:08:19,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:19,488 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-10-21 23:08:19,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:08:19,488 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-10-21 23:08:19,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 23:08:19,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:19,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:19,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:08:19,490 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:19,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:19,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1996779088, now seen corresponding path program 1 times [2020-10-21 23:08:19,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:19,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471779147] [2020-10-21 23:08:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:19,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471779147] [2020-10-21 23:08:19,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:19,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:08:19,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88203936] [2020-10-21 23:08:19,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:08:19,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:19,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:08:19,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:08:19,534 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-10-21 23:08:19,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:19,550 INFO L93 Difference]: Finished difference Result 85 states and 168 transitions. [2020-10-21 23:08:19,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:08:19,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-21 23:08:19,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:19,551 INFO L225 Difference]: With dead ends: 85 [2020-10-21 23:08:19,551 INFO L226 Difference]: Without dead ends: 33 [2020-10-21 23:08:19,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:08:19,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-21 23:08:19,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-21 23:08:19,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-21 23:08:19,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-21 23:08:19,554 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-10-21 23:08:19,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:19,555 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-21 23:08:19,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:08:19,555 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-21 23:08:19,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 23:08:19,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:08:19,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:08:19,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:08:19,556 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:08:19,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:08:19,557 INFO L82 PathProgramCache]: Analyzing trace with hash 242478162, now seen corresponding path program 2 times [2020-10-21 23:08:19,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:08:19,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206256838] [2020-10-21 23:08:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:08:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:08:19,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:08:19,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206256838] [2020-10-21 23:08:19,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:08:19,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:08:19,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862225410] [2020-10-21 23:08:19,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:08:19,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:08:19,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:08:19,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:08:19,594 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-10-21 23:08:19,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:08:19,607 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-10-21 23:08:19,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:08:19,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-21 23:08:19,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:08:19,608 INFO L225 Difference]: With dead ends: 32 [2020-10-21 23:08:19,608 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:08:19,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:08:19,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:08:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:08:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:08:19,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:08:19,609 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-21 23:08:19,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:08:19,610 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:08:19,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:08:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:08:19,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:08:19,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:08:19,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:08:19 BasicIcfg [2020-10-21 23:08:19,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:08:19,616 INFO L168 Benchmark]: Toolchain (without parser) took 4578.14 ms. Allocated memory was 141.0 MB in the beginning and 246.4 MB in the end (delta: 105.4 MB). Free memory was 101.4 MB in the beginning and 129.7 MB in the end (delta: -28.3 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:19,617 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 23:08:19,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.87 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 100.4 MB in the beginning and 158.1 MB in the end (delta: -57.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:19,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.17 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 155.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:19,619 INFO L168 Benchmark]: Boogie Preprocessor took 42.50 ms. Allocated memory is still 202.9 MB. Free memory was 155.5 MB in the beginning and 154.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:19,620 INFO L168 Benchmark]: RCFGBuilder took 454.16 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 130.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:19,621 INFO L168 Benchmark]: TraceAbstraction took 3379.15 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 129.5 MB in the beginning and 129.7 MB in the end (delta: -255.9 kB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2020-10-21 23:08:19,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 641.87 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 100.4 MB in the beginning and 158.1 MB in the end (delta: -57.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.17 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 155.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.50 ms. Allocated memory is still 202.9 MB. Free memory was 155.5 MB in the beginning and 154.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 454.16 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 130.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3379.15 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 129.5 MB in the beginning and 129.7 MB in the end (delta: -255.9 kB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 85 PlacesBefore, 30 PlacesAfterwards, 78 TransitionsBefore, 21 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 124 SDtfs, 127 SDslu, 166 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...