/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:05:55,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:05:55,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:05:55,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:05:55,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:05:55,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:05:55,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:05:55,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:05:55,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:05:55,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:05:55,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:05:55,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:05:55,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:05:55,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:05:55,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:05:55,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:05:55,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:05:55,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:05:55,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:05:55,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:05:55,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:05:55,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:05:55,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:05:55,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:05:55,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:05:55,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:05:55,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:05:55,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:05:55,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:05:55,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:05:55,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:05:55,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:05:55,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:05:55,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:05:55,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:05:55,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:05:55,785 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-NoLbe-keepdead.epf [2021-01-20 21:05:55,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:05:55,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:05:55,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:05:55,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:05:55,817 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:05:55,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:05:55,817 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:05:55,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:05:55,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:05:55,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:05:55,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:05:55,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:05:55,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:05:55,819 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:05:55,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:05:55,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:05:55,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:05:55,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:05:55,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:05:55,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:05:55,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:05:55,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:05:55,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:05:55,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:05:55,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:05:55,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:05:55,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:05:55,824 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:05:55,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:05:55,824 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:05:55,825 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:05:55,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:05:56,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:05:56,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:05:56,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:05:56,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:05:56,442 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:05:56,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2021-01-20 21:05:56,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51fc4a4aa/c11a87900cd943f59537f27d549ff708/FLAG4eb5219d2 [2021-01-20 21:05:57,260 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:05:57,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2021-01-20 21:05:57,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51fc4a4aa/c11a87900cd943f59537f27d549ff708/FLAG4eb5219d2 [2021-01-20 21:05:57,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51fc4a4aa/c11a87900cd943f59537f27d549ff708 [2021-01-20 21:05:57,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:05:57,487 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:05:57,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:05:57,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:05:57,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:05:57,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:05:57" (1/1) ... [2021-01-20 21:05:57,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48cd0edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:57, skipping insertion in model container [2021-01-20 21:05:57,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:05:57" (1/1) ... [2021-01-20 21:05:57,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:05:57,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:05:58,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:05:58,079 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:05:58,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:05:58,299 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:05:58,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58 WrapperNode [2021-01-20 21:05:58,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:05:58,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:05:58,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:05:58,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:05:58,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (1/1) ... [2021-01-20 21:05:58,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (1/1) ... [2021-01-20 21:05:58,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:05:58,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:05:58,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:05:58,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:05:58,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (1/1) ... [2021-01-20 21:05:58,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (1/1) ... [2021-01-20 21:05:58,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (1/1) ... [2021-01-20 21:05:58,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (1/1) ... [2021-01-20 21:05:58,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (1/1) ... [2021-01-20 21:05:58,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (1/1) ... [2021-01-20 21:05:58,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (1/1) ... [2021-01-20 21:05:58,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:05:58,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:05:58,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:05:58,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:05:58,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (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 [2021-01-20 21:05:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:05:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:05:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:05:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:05:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:05:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:05:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:05:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:05:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:05:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:05:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:05:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:05:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:05:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:05:58,582 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:05:59,024 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:05:59,024 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:05:59,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:05:59 BoogieIcfgContainer [2021-01-20 21:05:59,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:05:59,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:05:59,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:05:59,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:05:59,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:05:57" (1/3) ... [2021-01-20 21:05:59,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284441d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:05:59, skipping insertion in model container [2021-01-20 21:05:59,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:05:58" (2/3) ... [2021-01-20 21:05:59,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284441d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:05:59, skipping insertion in model container [2021-01-20 21:05:59,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:05:59" (3/3) ... [2021-01-20 21:05:59,037 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2021-01-20 21:05:59,055 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:05:59,056 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:05:59,060 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:05:59,061 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:05:59,095 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,096 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,096 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,101 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,103 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,103 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,103 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,103 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,103 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,104 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,114 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,114 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,115 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,117 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,118 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,118 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,118 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:05:59,121 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:05:59,137 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:05:59,162 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:05:59,163 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:05:59,163 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:05:59,163 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:05:59,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:05:59,163 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:05:59,164 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:05:59,164 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:05:59,178 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-20 21:06:00,376 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:00,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:00,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 21:06:00,471 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:06:00,472 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:06:00,473 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:06:00,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:06:00,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2021-01-20 21:06:00,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:06:00,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16974045] [2021-01-20 21:06:00,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:06:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:06:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:06:01,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16974045] [2021-01-20 21:06:01,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:06:01,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:06:01,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522719120] [2021-01-20 21:06:01,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:06:01,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:06:01,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:06:01,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:06:01,121 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:01,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:06:01,512 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2021-01-20 21:06:01,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:06:01,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-20 21:06:01,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:06:01,517 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:06:01,517 INFO L78 Accepts]: Start accepts. Automaton has 12200 states and 42464 transitions. Word has length 42 [2021-01-20 21:06:01,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:06:01,519 INFO L481 AbstractCegarLoop]: Abstraction has 12200 states and 42464 transitions. [2021-01-20 21:06:01,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:01,520 INFO L276 IsEmpty]: Start isEmpty. Operand 12200 states and 42464 transitions. [2021-01-20 21:06:01,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 21:06:01,540 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:06:01,540 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:06:01,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:06:01,541 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:06:01,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:06:01,542 INFO L82 PathProgramCache]: Analyzing trace with hash -807040891, now seen corresponding path program 1 times [2021-01-20 21:06:01,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:06:01,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045609379] [2021-01-20 21:06:01,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:06:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:06:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:06:01,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045609379] [2021-01-20 21:06:01,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:06:01,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:06:01,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097241641] [2021-01-20 21:06:01,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:06:01,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:06:01,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:06:01,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:06:01,816 INFO L87 Difference]: Start difference. First operand 12200 states and 42464 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:02,027 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2021-01-20 21:06:02,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:06:02,672 INFO L93 Difference]: Finished difference Result 16820 states and 57820 transitions. [2021-01-20 21:06:02,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:06:02,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-01-20 21:06:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:06:02,680 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:06:02,680 INFO L78 Accepts]: Start accepts. Automaton has 16820 states and 57820 transitions. Word has length 44 [2021-01-20 21:06:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:06:02,682 INFO L481 AbstractCegarLoop]: Abstraction has 16820 states and 57820 transitions. [2021-01-20 21:06:02,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 16820 states and 57820 transitions. [2021-01-20 21:06:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:06:02,726 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:06:02,726 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:06:02,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:06:02,727 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:06:02,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:06:02,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1134193934, now seen corresponding path program 1 times [2021-01-20 21:06:02,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:06:02,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411721204] [2021-01-20 21:06:02,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:06:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:06:02,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:06:02,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411721204] [2021-01-20 21:06:02,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:06:02,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:06:02,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916602929] [2021-01-20 21:06:02,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:06:02,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:06:02,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:06:02,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:06:02,883 INFO L87 Difference]: Start difference. First operand 16820 states and 57820 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:03,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:06:03,537 INFO L93 Difference]: Finished difference Result 28580 states and 96880 transitions. [2021-01-20 21:06:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:06:03,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 21:06:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:06:03,544 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:06:03,544 INFO L78 Accepts]: Start accepts. Automaton has 28580 states and 96880 transitions. Word has length 47 [2021-01-20 21:06:03,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:06:03,545 INFO L481 AbstractCegarLoop]: Abstraction has 28580 states and 96880 transitions. [2021-01-20 21:06:03,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:03,545 INFO L276 IsEmpty]: Start isEmpty. Operand 28580 states and 96880 transitions. [2021-01-20 21:06:03,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 21:06:03,607 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:06:03,607 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:06:03,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:06:03,608 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:06:03,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:06:03,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2021-01-20 21:06:03,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:06:03,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105332661] [2021-01-20 21:06:03,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:06:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:06:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:06:03,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105332661] [2021-01-20 21:06:03,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:06:03,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:06:03,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815302135] [2021-01-20 21:06:03,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:06:03,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:06:03,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:06:03,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:06:03,866 INFO L87 Difference]: Start difference. First operand 28580 states and 96880 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:06:04,571 INFO L93 Difference]: Finished difference Result 48884 states and 162964 transitions. [2021-01-20 21:06:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:06:04,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-01-20 21:06:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:06:04,573 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:06:04,573 INFO L78 Accepts]: Start accepts. Automaton has 48884 states and 162964 transitions. Word has length 48 [2021-01-20 21:06:04,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:06:04,574 INFO L481 AbstractCegarLoop]: Abstraction has 48884 states and 162964 transitions. [2021-01-20 21:06:04,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 48884 states and 162964 transitions. [2021-01-20 21:06:04,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:06:04,651 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:06:04,652 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:06:04,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:06:04,652 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:06:04,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:06:04,653 INFO L82 PathProgramCache]: Analyzing trace with hash 710827437, now seen corresponding path program 1 times [2021-01-20 21:06:04,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:06:04,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867202559] [2021-01-20 21:06:04,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:06:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:06:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:06:04,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867202559] [2021-01-20 21:06:04,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:06:04,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:06:04,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545196155] [2021-01-20 21:06:04,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:06:04,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:06:04,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:06:04,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:06:04,815 INFO L87 Difference]: Start difference. First operand 48884 states and 162964 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:05,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:06:05,827 INFO L93 Difference]: Finished difference Result 83524 states and 276920 transitions. [2021-01-20 21:06:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:06:05,828 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 21:06:05,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:06:05,835 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:06:05,835 INFO L78 Accepts]: Start accepts. Automaton has 83524 states and 276920 transitions. Word has length 51 [2021-01-20 21:06:05,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:06:05,837 INFO L481 AbstractCegarLoop]: Abstraction has 83524 states and 276920 transitions. [2021-01-20 21:06:05,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:06:05,837 INFO L276 IsEmpty]: Start isEmpty. Operand 83524 states and 276920 transitions. [2021-01-20 21:06:06,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:06:06,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:06:06,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:06:06 BasicIcfg [2021-01-20 21:06:06,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:06:06,177 INFO L168 Benchmark]: Toolchain (without parser) took 8688.48 ms. Allocated memory was 302.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 277.2 MB in the beginning and 988.8 MB in the end (delta: -711.6 MB). Peak memory consumption was 420.3 MB. Max. memory is 16.0 GB. [2021-01-20 21:06:06,181 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 271.9 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:06:06,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.06 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 246.2 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:06:06,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.36 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 284.9 MB in the end (delta: -38.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-01-20 21:06:06,199 INFO L168 Benchmark]: Boogie Preprocessor took 59.87 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 283.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:06:06,200 INFO L168 Benchmark]: RCFGBuilder took 548.64 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 259.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:06:06,204 INFO L168 Benchmark]: TraceAbstraction took 7144.28 ms. Allocated memory was 302.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 259.4 MB in the beginning and 988.8 MB in the end (delta: -729.4 MB). Peak memory consumption was 401.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:06:06,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 271.9 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 809.06 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 246.2 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 112.36 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 284.9 MB in the end (delta: -38.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 59.87 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 283.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 548.64 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 259.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7144.28 ms. Allocated memory was 302.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 259.4 MB in the beginning and 988.8 MB in the end (delta: -729.4 MB). Peak memory consumption was 401.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 610 SDtfs, 1356 SDslu, 2143 SDs, 0 SdLazy, 254 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83524occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 27837 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...