/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:54:59,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:54:59,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:55:00,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:55:00,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:55:00,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:55:00,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:55:00,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:55:00,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:55:00,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:55:00,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:55:00,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:55:00,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:55:00,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:55:00,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:55:00,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:55:00,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:55:00,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:55:00,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:55:00,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:55:00,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:55:00,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:55:00,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:55:00,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:55:00,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:55:00,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:55:00,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:55:00,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:55:00,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:55:00,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:55:00,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:55:00,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:55:00,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:55:00,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:55:00,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:55:00,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:55:00,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:55:00,199 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:55:00,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:55:00,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:55:00,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:55:00,204 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:55:00,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:55:00,205 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:55:00,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:55:00,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:55:00,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:55:00,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:55:00,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:55:00,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:55:00,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:55:00,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:55:00,208 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:55:00,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:55:00,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:55:00,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:55:00,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:55:00,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:55:00,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:55:00,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:55:00,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:55:00,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:55:00,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:55:00,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:55:00,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:55:00,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:55:00,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:55:00,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:55:00,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:55:00,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:55:00,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:55:00,672 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:55:00,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2020-11-09 12:55:00,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/297bd05ce/0accaafada47419a98d15850041c577b/FLAGeb2e6296f [2020-11-09 12:55:01,667 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:55:01,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2020-11-09 12:55:01,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/297bd05ce/0accaafada47419a98d15850041c577b/FLAGeb2e6296f [2020-11-09 12:55:01,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/297bd05ce/0accaafada47419a98d15850041c577b [2020-11-09 12:55:01,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:55:01,911 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:55:01,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:55:01,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:55:01,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:55:01,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:55:01" (1/1) ... [2020-11-09 12:55:01,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b609cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:01, skipping insertion in model container [2020-11-09 12:55:01,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:55:01" (1/1) ... [2020-11-09 12:55:01,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:55:02,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:55:02,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:55:02,377 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:55:02,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:55:02,645 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:55:02,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02 WrapperNode [2020-11-09 12:55:02,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:55:02,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:55:02,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:55:02,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:55:02,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:55:02,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:55:02,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:55:02,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:55:02,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... [2020-11-09 12:55:02,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:55:02,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:55:02,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:55:02,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:55:02,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:55:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:55:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:55:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:55:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:55:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:55:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:55:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:55:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:55:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:55:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:55:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:55:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:55:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:55:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:55:02,824 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:55:03,391 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:55:03,391 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:55:03,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:55:03 BoogieIcfgContainer [2020-11-09 12:55:03,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:55:03,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:55:03,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:55:03,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:55:03,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:55:01" (1/3) ... [2020-11-09 12:55:03,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250a1601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:55:03, skipping insertion in model container [2020-11-09 12:55:03,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:55:02" (2/3) ... [2020-11-09 12:55:03,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250a1601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:55:03, skipping insertion in model container [2020-11-09 12:55:03,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:55:03" (3/3) ... [2020-11-09 12:55:03,404 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc.i [2020-11-09 12:55:03,421 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:55:03,421 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:55:03,426 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:55:03,427 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:55:03,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,468 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,468 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,471 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,471 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,472 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,472 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,479 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,479 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,492 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,492 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,492 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:55:03,495 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:55:03,508 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:55:03,533 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:55:03,533 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:55:03,533 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:55:03,533 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:55:03,534 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:55:03,534 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:55:03,534 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:55:03,534 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:55:03,548 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:55:03,550 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 12:55:03,553 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 12:55:03,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-09 12:55:03,604 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-09 12:55:03,605 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:55:03,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 12:55:03,613 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 12:55:05,892 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-09 12:55:06,468 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-11-09 12:55:07,590 WARN L194 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:55:07,720 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:55:07,965 WARN L194 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 12:55:08,087 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 12:55:08,263 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-11-09 12:55:08,477 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-09 12:55:08,614 INFO L131 LiptonReduction]: Checked pairs total: 2901 [2020-11-09 12:55:08,617 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-11-09 12:55:08,626 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-11-09 12:55:08,654 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 12:55:08,657 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 12:55:08,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:55:08,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:08,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:08,665 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:08,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:08,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1054042143, now seen corresponding path program 1 times [2020-11-09 12:55:08,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:08,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487913195] [2020-11-09 12:55:08,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:09,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487913195] [2020-11-09 12:55:09,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:09,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:55:09,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820613030] [2020-11-09 12:55:09,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:55:09,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:09,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:55:09,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:55:09,065 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-11-09 12:55:09,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:09,148 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-11-09 12:55:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:55:09,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-09 12:55:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:09,176 INFO L225 Difference]: With dead ends: 281 [2020-11-09 12:55:09,180 INFO L226 Difference]: Without dead ends: 180 [2020-11-09 12:55:09,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:55:09,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-09 12:55:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-11-09 12:55:09,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-09 12:55:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-11-09 12:55:09,253 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-11-09 12:55:09,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:09,254 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-11-09 12:55:09,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:55:09,254 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-11-09 12:55:09,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:55:09,256 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:09,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:09,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:55:09,256 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:09,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:09,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1550829140, now seen corresponding path program 1 times [2020-11-09 12:55:09,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:09,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258351049] [2020-11-09 12:55:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:09,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:09,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258351049] [2020-11-09 12:55:09,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:09,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:55:09,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065772780] [2020-11-09 12:55:09,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:55:09,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:09,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:55:09,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:55:09,358 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 5 states. [2020-11-09 12:55:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:09,415 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-11-09 12:55:09,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:55:09,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 12:55:09,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:09,417 INFO L225 Difference]: With dead ends: 163 [2020-11-09 12:55:09,417 INFO L226 Difference]: Without dead ends: 126 [2020-11-09 12:55:09,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:55:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-09 12:55:09,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-11-09 12:55:09,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-09 12:55:09,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-11-09 12:55:09,431 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-11-09 12:55:09,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:09,432 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-11-09 12:55:09,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:55:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-11-09 12:55:09,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:55:09,434 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:09,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:09,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:55:09,434 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:09,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:09,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1926964344, now seen corresponding path program 1 times [2020-11-09 12:55:09,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:09,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068762778] [2020-11-09 12:55:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:09,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068762778] [2020-11-09 12:55:09,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:09,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:55:09,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354131701] [2020-11-09 12:55:09,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:55:09,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:09,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:55:09,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:55:09,571 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-11-09 12:55:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:09,680 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-11-09 12:55:09,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:55:09,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-09 12:55:09,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:09,682 INFO L225 Difference]: With dead ends: 118 [2020-11-09 12:55:09,683 INFO L226 Difference]: Without dead ends: 108 [2020-11-09 12:55:09,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-09 12:55:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-09 12:55:09,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-09 12:55:09,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-09 12:55:09,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-11-09 12:55:09,707 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-11-09 12:55:09,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:09,707 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-11-09 12:55:09,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:55:09,708 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-11-09 12:55:09,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:55:09,712 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:09,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:09,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:55:09,713 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:09,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:09,717 INFO L82 PathProgramCache]: Analyzing trace with hash 337836795, now seen corresponding path program 1 times [2020-11-09 12:55:09,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:09,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260553745] [2020-11-09 12:55:09,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:09,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260553745] [2020-11-09 12:55:09,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:09,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:55:09,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687725824] [2020-11-09 12:55:09,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:55:09,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:09,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:55:09,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:55:09,844 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-11-09 12:55:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:09,869 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-11-09 12:55:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:55:09,869 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:55:09,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:09,870 INFO L225 Difference]: With dead ends: 133 [2020-11-09 12:55:09,871 INFO L226 Difference]: Without dead ends: 54 [2020-11-09 12:55:09,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:55:09,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-09 12:55:09,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-09 12:55:09,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-09 12:55:09,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-11-09 12:55:09,875 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-11-09 12:55:09,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:09,876 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-11-09 12:55:09,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:55:09,876 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-11-09 12:55:09,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:55:09,877 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:09,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:09,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:55:09,878 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:09,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:09,878 INFO L82 PathProgramCache]: Analyzing trace with hash 64468355, now seen corresponding path program 2 times [2020-11-09 12:55:09,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:09,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201899684] [2020-11-09 12:55:09,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:09,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201899684] [2020-11-09 12:55:09,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:09,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:55:09,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184081251] [2020-11-09 12:55:09,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:55:09,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:09,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:55:09,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:55:09,934 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-11-09 12:55:09,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:09,953 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-11-09 12:55:09,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:55:09,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:55:09,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:09,955 INFO L225 Difference]: With dead ends: 67 [2020-11-09 12:55:09,955 INFO L226 Difference]: Without dead ends: 30 [2020-11-09 12:55:09,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:55:09,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-09 12:55:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-09 12:55:09,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-09 12:55:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-09 12:55:09,958 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-11-09 12:55:09,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:09,959 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-09 12:55:09,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:55:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-09 12:55:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 12:55:09,960 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:55:09,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:55:09,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:55:09,960 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:55:09,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:55:09,961 INFO L82 PathProgramCache]: Analyzing trace with hash -339277395, now seen corresponding path program 3 times [2020-11-09 12:55:09,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:55:09,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799585923] [2020-11-09 12:55:09,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:55:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:55:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:55:10,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799585923] [2020-11-09 12:55:10,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:55:10,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:55:10,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304330808] [2020-11-09 12:55:10,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:55:10,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:55:10,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:55:10,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:55:10,013 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-11-09 12:55:10,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:55:10,024 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-11-09 12:55:10,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:55:10,024 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 12:55:10,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:55:10,025 INFO L225 Difference]: With dead ends: 29 [2020-11-09 12:55:10,025 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:55:10,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:55:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:55:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:55:10,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:55:10,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:55:10,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 12:55:10,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:55:10,027 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:55:10,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:55:10,027 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:55:10,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:55:10,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:55:10,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:55:10 BasicIcfg [2020-11-09 12:55:10,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:55:10,033 INFO L168 Benchmark]: Toolchain (without parser) took 8126.80 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 124.7 MB in the beginning and 113.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 78.9 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,034 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.7 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:55:10,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.83 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 125.6 MB in the end (delta: -1.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.03 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 123.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,037 INFO L168 Benchmark]: Boogie Preprocessor took 28.75 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 122.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,037 INFO L168 Benchmark]: RCFGBuilder took 661.68 ms. Allocated memory is still 151.0 MB. Free memory was 122.4 MB in the beginning and 99.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,038 INFO L168 Benchmark]: TraceAbstraction took 6635.83 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 99.9 MB in the beginning and 113.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 54.3 MB. Max. memory is 8.0 GB. [2020-11-09 12:55:10,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.7 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 730.83 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 125.6 MB in the end (delta: -1.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 54.03 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 123.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.75 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 122.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 661.68 ms. Allocated memory is still 151.0 MB. Free memory was 122.4 MB in the beginning and 99.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6635.83 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 99.9 MB in the beginning and 113.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 54.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 950 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.0s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2901 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 115 SDtfs, 168 SDslu, 151 SDs, 0 SdLazy, 57 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2874 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...