/usr/bin/java -Xmx16000000000 -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/safe006_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:31:15,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:31:15,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:31:15,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:31:15,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:31:15,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:31:15,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:31:15,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:31:15,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:31:15,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:31:15,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:31:15,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:31:15,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:31:15,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:31:15,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:31:15,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:31:15,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:31:15,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:31:15,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:31:15,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:31:15,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:31:15,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:31:15,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:31:15,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:31:15,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:31:15,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:31:15,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:31:15,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:31:15,777 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 [2020-10-15 18:31:15,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:31:15,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:31:15,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:31:15,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:31:15,820 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:31:15,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:31:15,820 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:31:15,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:31:15,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:31:15,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:31:15,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:31:15,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:31:15,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:31:15,826 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:31:15,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:31:15,827 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:31:15,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:31:15,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:31:15,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:31:15,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:31:15,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:31:15,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:31:15,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:31:15,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:31:15,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:31:15,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:31:15,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:31:15,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:31:15,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:31:15,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:31:16,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:31:16,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:31:16,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:31:16,155 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:31:16,155 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:31:16,156 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-10-15 18:31:16,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4797faf27/8d67f1e96e9b47ec92981db9936b1dcf/FLAG5398ebdb4 [2020-10-15 18:31:16,736 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:31:16,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-10-15 18:31:16,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4797faf27/8d67f1e96e9b47ec92981db9936b1dcf/FLAG5398ebdb4 [2020-10-15 18:31:17,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4797faf27/8d67f1e96e9b47ec92981db9936b1dcf [2020-10-15 18:31:17,043 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:31:17,045 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:31:17,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:31:17,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:31:17,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:31:17,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b550af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17, skipping insertion in model container [2020-10-15 18:31:17,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:31:17,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:31:17,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:31:17,603 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:31:17,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:31:17,736 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:31:17,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17 WrapperNode [2020-10-15 18:31:17,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:31:17,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:31:17,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:31:17,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:31:17,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:31:17,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:31:17,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:31:17,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:31:17,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (1/1) ... [2020-10-15 18:31:17,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:31:17,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:31:17,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:31:17,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:31:17,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (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 [2020-10-15 18:31:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:31:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:31:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:31:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:31:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:31:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:31:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:31:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:31:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:31:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:31:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:31:17,879 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:31:18,205 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:31:18,205 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:31:18,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:31:18 BoogieIcfgContainer [2020-10-15 18:31:18,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:31:18,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:31:18,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:31:18,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:31:18,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:31:17" (1/3) ... [2020-10-15 18:31:18,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f7d094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:31:18, skipping insertion in model container [2020-10-15 18:31:18,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:31:17" (2/3) ... [2020-10-15 18:31:18,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f7d094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:31:18, skipping insertion in model container [2020-10-15 18:31:18,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:31:18" (3/3) ... [2020-10-15 18:31:18,216 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc.i [2020-10-15 18:31:18,228 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:31:18,228 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:31:18,235 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:31:18,236 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:31:18,262 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,263 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,263 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,264 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,265 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,265 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,270 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,270 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,270 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,277 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,278 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:31:18,296 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-15 18:31:18,316 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:31:18,316 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:31:18,317 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:31:18,317 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:31:18,317 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:31:18,317 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:31:18,317 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:31:18,317 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:31:18,328 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:31:18,331 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-15 18:31:18,333 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-15 18:31:18,335 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-10-15 18:31:18,374 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-10-15 18:31:18,375 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:31:18,380 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-15 18:31:18,382 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-15 18:31:19,662 INFO L132 LiptonReduction]: Checked pairs total: 1197 [2020-10-15 18:31:19,662 INFO L134 LiptonReduction]: Total number of compositions: 50 [2020-10-15 18:31:19,669 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-15 18:31:19,682 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-15 18:31:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-15 18:31:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 18:31:19,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:19,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 18:31:19,692 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:19,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:19,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-10-15 18:31:19,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:19,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050722310] [2020-10-15 18:31:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:19,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050722310] [2020-10-15 18:31:19,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:19,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:31:19,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435645061] [2020-10-15 18:31:19,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:31:19,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:19,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:31:19,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:31:19,953 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-15 18:31:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:19,983 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-10-15 18:31:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:31:19,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-15 18:31:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:19,997 INFO L225 Difference]: With dead ends: 70 [2020-10-15 18:31:19,997 INFO L226 Difference]: Without dead ends: 54 [2020-10-15 18:31:19,998 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 [2020-10-15 18:31:20,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-15 18:31:20,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-15 18:31:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 18:31:20,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-10-15 18:31:20,052 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-10-15 18:31:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:20,053 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-10-15 18:31:20,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:31:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-10-15 18:31:20,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 18:31:20,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:20,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:20,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:31:20,056 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:20,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:20,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-10-15 18:31:20,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:20,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540764511] [2020-10-15 18:31:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:20,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:20,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540764511] [2020-10-15 18:31:20,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:20,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:31:20,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571704870] [2020-10-15 18:31:20,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:31:20,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:20,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:31:20,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:31:20,125 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-10-15 18:31:20,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:20,152 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-15 18:31:20,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:31:20,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-15 18:31:20,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:20,153 INFO L225 Difference]: With dead ends: 60 [2020-10-15 18:31:20,153 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 18:31:20,154 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 [2020-10-15 18:31:20,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 18:31:20,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-15 18:31:20,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 18:31:20,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-10-15 18:31:20,160 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-10-15 18:31:20,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:20,161 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-10-15 18:31:20,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:31:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-10-15 18:31:20,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:31:20,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:31:20,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:31:20,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:31:20,162 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:31:20,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:31:20,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-10-15 18:31:20,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:31:20,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270704851] [2020-10-15 18:31:20,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:31:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:31:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:31:20,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270704851] [2020-10-15 18:31:20,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:31:20,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:31:20,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004722301] [2020-10-15 18:31:20,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:31:20,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:31:20,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:31:20,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:31:20,229 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-10-15 18:31:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:31:20,242 INFO L93 Difference]: Finished difference Result 30 states and 50 transitions. [2020-10-15 18:31:20,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:31:20,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 18:31:20,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:31:20,244 INFO L225 Difference]: With dead ends: 30 [2020-10-15 18:31:20,244 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:31:20,244 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 [2020-10-15 18:31:20,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:31:20,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:31:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:31:20,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:31:20,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-10-15 18:31:20,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:31:20,246 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:31:20,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:31:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:31:20,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:31:20,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:31:20,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:31:20 BasicIcfg [2020-10-15 18:31:20,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:31:20,253 INFO L168 Benchmark]: Toolchain (without parser) took 3207.64 ms. Allocated memory was 253.2 MB in the beginning and 358.1 MB in the end (delta: 104.9 MB). Free memory was 206.3 MB in the beginning and 192.8 MB in the end (delta: 13.5 MB). Peak memory consumption was 118.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,254 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:31:20,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.89 ms. Allocated memory was 253.2 MB in the beginning and 317.2 MB in the end (delta: 64.0 MB). Free memory was 206.3 MB in the beginning and 272.4 MB in the end (delta: -66.1 MB). Peak memory consumption was 30.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.93 ms. Allocated memory is still 317.2 MB. Free memory was 272.4 MB in the beginning and 269.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,257 INFO L168 Benchmark]: Boogie Preprocessor took 25.98 ms. Allocated memory is still 317.2 MB. Free memory was 269.9 MB in the beginning and 267.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,257 INFO L168 Benchmark]: RCFGBuilder took 400.79 ms. Allocated memory is still 317.2 MB. Free memory was 267.4 MB in the beginning and 248.0 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,258 INFO L168 Benchmark]: TraceAbstraction took 2041.25 ms. Allocated memory was 317.2 MB in the beginning and 358.1 MB in the end (delta: 40.9 MB). Free memory was 248.0 MB in the beginning and 192.8 MB in the end (delta: 55.3 MB). Peak memory consumption was 96.2 MB. Max. memory is 14.2 GB. [2020-10-15 18:31:20,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 253.2 MB. Free memory is still 227.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 690.89 ms. Allocated memory was 253.2 MB in the beginning and 317.2 MB in the end (delta: 64.0 MB). Free memory was 206.3 MB in the beginning and 272.4 MB in the end (delta: -66.1 MB). Peak memory consumption was 30.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 42.93 ms. Allocated memory is still 317.2 MB. Free memory was 272.4 MB in the beginning and 269.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.98 ms. Allocated memory is still 317.2 MB. Free memory was 269.9 MB in the beginning and 267.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 400.79 ms. Allocated memory is still 317.2 MB. Free memory was 267.4 MB in the beginning and 248.0 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2041.25 ms. Allocated memory was 317.2 MB in the beginning and 358.1 MB in the end (delta: 40.9 MB). Free memory was 248.0 MB in the beginning and 192.8 MB in the end (delta: 55.3 MB). Peak memory consumption was 96.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 481 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 24 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 61 PlacesBefore, 22 PlacesAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 50 TotalNumberOfCompositions, 1197 MoverChecksTotal - 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 33 SDtfs, 32 SDslu, 20 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...