/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:46:40,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:46:40,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:46:40,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:46:40,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:46:40,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:46:40,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:46:40,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:46:40,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:46:40,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:46:40,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:46:40,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:46:40,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:46:40,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:46:40,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:46:40,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:46:40,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:46:40,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:46:40,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:46:40,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:46:40,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:46:40,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:46:40,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:46:40,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:46:40,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:46:40,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:46:40,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:46:40,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:46:40,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:46:40,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:46:40,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:46:40,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:46:40,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:46:40,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:46:40,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:46:40,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:46:40,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:46:40,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:46:40,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:46:40,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:46:40,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:46:40,813 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 07:46:40,834 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:46:40,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:46:40,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:46:40,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:46:40,836 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:46:40,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:46:40,837 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:46:40,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:46:40,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:46:40,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:46:40,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:46:40,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:46:40,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:46:40,838 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:46:40,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:46:40,838 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:46:40,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:46:40,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:46:40,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:46:40,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:46:40,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:46:40,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:46:40,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:46:40,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:46:40,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:46:40,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:46:40,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:46:40,842 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:46:40,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:46:40,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:46:41,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:46:41,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:46:41,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:46:41,147 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:46:41,148 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:46:41,149 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-27 07:46:41,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e11a63c7d/f5ad6ff791e84033a15d1dbbc1322f81/FLAGaee7e0a6c [2019-12-27 07:46:41,741 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:46:41,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-27 07:46:41,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e11a63c7d/f5ad6ff791e84033a15d1dbbc1322f81/FLAGaee7e0a6c [2019-12-27 07:46:42,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e11a63c7d/f5ad6ff791e84033a15d1dbbc1322f81 [2019-12-27 07:46:42,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:46:42,093 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:46:42,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:46:42,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:46:42,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:46:42,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:42,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b119eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42, skipping insertion in model container [2019-12-27 07:46:42,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:42,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:46:42,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:46:42,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:46:42,765 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:46:42,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:46:42,936 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:46:42,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42 WrapperNode [2019-12-27 07:46:42,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:46:42,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:46:42,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:46:42,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:46:42,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:42,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:42,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:46:42,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:46:42,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:46:42,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:46:43,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:43,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:43,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:43,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:43,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:43,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:43,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (1/1) ... [2019-12-27 07:46:43,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:46:43,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:46:43,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:46:43,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:46:43,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (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 [2019-12-27 07:46:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:46:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:46:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:46:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:46:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:46:43,088 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:46:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:46:43,088 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:46:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:46:43,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:46:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:46:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:46:43,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:46:43,095 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 07:46:43,457 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:46:43,458 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:46:43,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:46:43 BoogieIcfgContainer [2019-12-27 07:46:43,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:46:43,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:46:43,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:46:43,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:46:43,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:46:42" (1/3) ... [2019-12-27 07:46:43,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bc21a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:46:43, skipping insertion in model container [2019-12-27 07:46:43,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:42" (2/3) ... [2019-12-27 07:46:43,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bc21a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:46:43, skipping insertion in model container [2019-12-27 07:46:43,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:46:43" (3/3) ... [2019-12-27 07:46:43,468 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2019-12-27 07:46:43,479 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:46:43,479 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:46:43,487 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:46:43,488 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:46:43,517 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,517 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,518 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,519 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,519 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,520 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,520 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,520 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,521 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,521 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,521 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,521 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,522 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,522 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,522 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,526 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,527 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,527 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,527 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,533 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,533 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,533 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,534 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,538 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,538 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,538 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,538 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:43,554 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:46:43,576 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:46:43,576 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:46:43,576 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:46:43,576 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:46:43,576 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:46:43,577 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:46:43,577 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:46:43,577 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:46:43,590 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 07:46:43,592 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:46:43,649 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:46:43,649 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:46:43,655 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:46:43,658 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:46:43,682 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:46:43,682 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:46:43,683 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:46:43,686 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:46:43,687 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:46:45,008 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 07:46:45,198 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-27 07:46:45,199 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 07:46:45,204 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 07:46:45,221 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 07:46:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 07:46:45,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:46:45,245 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:45,246 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:45,247 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:45,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:45,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-27 07:46:45,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:45,270 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445112728] [2019-12-27 07:46:45,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:45,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:46:45,574 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445112728] [2019-12-27 07:46:45,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:45,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:46:45,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358701905] [2019-12-27 07:46:45,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:46:45,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:45,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:46:45,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:46:45,599 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 07:46:45,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:45,631 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 07:46:45,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:46:45,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:46:45,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:45,648 INFO L225 Difference]: With dead ends: 42 [2019-12-27 07:46:45,648 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:46:45,652 INFO L631 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 [2019-12-27 07:46:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:46:45,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:46:45,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:46:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:46:45,703 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:46:45,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:45,704 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:46:45,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:46:45,705 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:46:45,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:46:45,707 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:45,707 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:45,708 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:45,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:45,708 INFO L82 PathProgramCache]: Analyzing trace with hash -731020953, now seen corresponding path program 1 times [2019-12-27 07:46:45,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:45,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400544483] [2019-12-27 07:46:45,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:45,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:46:45,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400544483] [2019-12-27 07:46:45,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:45,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:46:45,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747845818] [2019-12-27 07:46:45,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:46:45,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:45,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:46:45,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:46:45,802 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 07:46:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:45,832 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 07:46:45,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:46:45,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 07:46:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:45,834 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:46:45,834 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 07:46:45,835 INFO L631 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 [2019-12-27 07:46:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 07:46:45,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 07:46:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 07:46:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 07:46:45,842 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 07:46:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:45,842 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 07:46:45,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:46:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 07:46:45,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:46:45,843 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:45,843 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:45,844 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:45,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:45,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1301449846, now seen corresponding path program 1 times [2019-12-27 07:46:45,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:45,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457284804] [2019-12-27 07:46:45,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:46:45,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457284804] [2019-12-27 07:46:45,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:45,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:46:45,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389297273] [2019-12-27 07:46:45,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:46:45,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:45,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:46:45,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:46:45,902 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 07:46:45,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:45,910 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-27 07:46:45,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:46:45,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:46:45,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:45,911 INFO L225 Difference]: With dead ends: 27 [2019-12-27 07:46:45,911 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 07:46:45,912 INFO L631 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 [2019-12-27 07:46:45,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 07:46:45,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 07:46:45,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 07:46:45,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 07:46:45,919 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 07:46:45,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:45,920 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 07:46:45,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:46:45,920 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 07:46:45,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:46:45,921 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:45,922 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:45,922 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:45,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:45,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1005356980, now seen corresponding path program 1 times [2019-12-27 07:46:45,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:45,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988818059] [2019-12-27 07:46:45,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:46,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:46:46,018 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988818059] [2019-12-27 07:46:46,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:46,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:46:46,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278929137] [2019-12-27 07:46:46,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:46:46,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:46,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:46:46,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:46:46,020 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 07:46:46,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:46,037 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-27 07:46:46,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:46:46,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:46:46,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:46,038 INFO L225 Difference]: With dead ends: 29 [2019-12-27 07:46:46,039 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 07:46:46,039 INFO L631 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 [2019-12-27 07:46:46,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 07:46:46,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 07:46:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 07:46:46,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 07:46:46,042 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 07:46:46,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:46,042 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 07:46:46,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:46:46,043 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 07:46:46,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:46:46,043 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:46,043 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:46,044 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:46,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:46,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 2 times [2019-12-27 07:46:46,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:46,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676126756] [2019-12-27 07:46:46,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:46:46,090 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676126756] [2019-12-27 07:46:46,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:46,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:46:46,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613049619] [2019-12-27 07:46:46,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:46:46,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:46,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:46:46,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:46:46,094 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 07:46:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:46,114 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 07:46:46,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:46:46,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:46:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:46,115 INFO L225 Difference]: With dead ends: 16 [2019-12-27 07:46:46,115 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:46:46,115 INFO L631 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 [2019-12-27 07:46:46,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:46:46,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:46:46,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:46:46,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:46:46,116 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:46:46,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:46,120 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:46:46,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:46:46,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:46:46,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:46:46,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:46:46 BasicIcfg [2019-12-27 07:46:46,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:46:46,126 INFO L168 Benchmark]: Toolchain (without parser) took 4033.41 ms. Allocated memory was 145.8 MB in the beginning and 246.4 MB in the end (delta: 100.7 MB). Free memory was 101.8 MB in the beginning and 159.4 MB in the end (delta: -57.6 MB). Peak memory consumption was 43.1 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:46,127 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 07:46:46,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.90 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.6 MB in the beginning and 158.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:46,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.54 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:46,130 INFO L168 Benchmark]: Boogie Preprocessor took 27.74 ms. Allocated memory is still 203.4 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:46,130 INFO L168 Benchmark]: RCFGBuilder took 434.82 ms. Allocated memory is still 203.4 MB. Free memory was 155.1 MB in the beginning and 134.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:46,131 INFO L168 Benchmark]: TraceAbstraction took 2663.99 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 134.0 MB in the beginning and 159.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:46,136 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 842.90 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.6 MB in the beginning and 158.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.54 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.74 ms. Allocated memory is still 203.4 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 434.82 ms. Allocated memory is still 203.4 MB. Free memory was 155.1 MB in the beginning and 134.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2663.99 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 134.0 MB in the beginning and 159.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 24 SDslu, 35 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...