/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:37:28,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:37:28,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:37:28,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:37:28,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:37:28,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:37:28,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:37:28,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:37:28,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:37:28,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:37:28,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:37:28,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:37:28,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:37:28,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:37:28,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:37:28,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:37:28,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:37:28,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:37:28,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:37:28,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:37:28,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:37:28,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:37:28,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:37:28,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:37:28,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:37:28,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:37:28,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:37:28,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:37:28,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:37:28,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:37:28,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:37:28,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:37:28,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:37:28,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:37:28,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:37:28,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:37:28,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:37:28,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:37:28,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:37:28,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:37:28,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:37:28,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:37:28,543 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:37:28,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:37:28,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:37:28,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:37:28,546 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:37:28,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:37:28,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:37:28,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:37:28,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:37:28,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:37:28,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:37:28,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:37:28,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:37:28,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:37:28,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:37:28,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:37:28,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:37:28,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:37:28,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:37:28,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:37:28,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:37:28,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:37:28,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:37:28,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:37:28,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:37:28,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:37:28,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:37:28,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:37:28,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:37:28,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:37:28,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:37:29,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:37:29,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:37:29,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:37:29,010 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:37:29,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-09-11 15:37:29,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f590dd41/56122bfbf69147bd96f928cc9ada1d30/FLAGfd945a84d [2020-09-11 15:37:29,768 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:37:29,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-09-11 15:37:29,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f590dd41/56122bfbf69147bd96f928cc9ada1d30/FLAGfd945a84d [2020-09-11 15:37:30,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f590dd41/56122bfbf69147bd96f928cc9ada1d30 [2020-09-11 15:37:30,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:37:30,036 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:37:30,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:37:30,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:37:30,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:37:30,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ceedc44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30, skipping insertion in model container [2020-09-11 15:37:30,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:37:30,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:37:30,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:37:30,643 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:37:30,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:37:30,819 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:37:30,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30 WrapperNode [2020-09-11 15:37:30,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:37:30,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:37:30,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:37:30,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:37:30,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:37:30,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:37:30,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:37:30,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:37:30,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... [2020-09-11 15:37:30,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:37:30,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:37:30,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:37:30,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:37:30,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 15:37:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:37:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:37:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:37:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:37:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:37:30,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:37:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:37:30,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:37:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:37:30,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:37:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:37:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:37:30,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:37:31,001 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:37:31,351 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:37:31,352 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:37:31,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:37:31 BoogieIcfgContainer [2020-09-11 15:37:31,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:37:31,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:37:31,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:37:31,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:37:31,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:37:30" (1/3) ... [2020-09-11 15:37:31,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f538b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:37:31, skipping insertion in model container [2020-09-11 15:37:31,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:37:30" (2/3) ... [2020-09-11 15:37:31,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f538b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:37:31, skipping insertion in model container [2020-09-11 15:37:31,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:37:31" (3/3) ... [2020-09-11 15:37:31,367 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2020-09-11 15:37:31,379 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:37:31,379 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:37:31,389 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:37:31,391 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:37:31,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,425 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,425 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,426 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,428 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,429 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,429 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,435 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,436 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,436 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,436 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,445 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,445 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,456 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,456 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:37:31,481 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 15:37:31,510 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:37:31,510 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:37:31,510 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:37:31,511 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:37:31,511 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:37:31,511 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:37:31,511 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:37:31,511 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:37:31,529 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-11 15:37:31,531 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 15:37:31,579 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 15:37:31,579 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:37:31,585 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:37:31,588 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 15:37:31,610 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 15:37:31,611 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:37:31,611 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:37:31,613 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 15:37:31,615 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:37:33,062 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-09-11 15:37:33,244 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-09-11 15:37:33,478 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2585 [2020-09-11 15:37:33,478 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-11 15:37:33,483 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-09-11 15:37:33,511 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-11 15:37:33,514 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-11 15:37:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:37:33,523 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:37:33,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:37:33,524 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:37:33,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:37:33,532 INFO L82 PathProgramCache]: Analyzing trace with hash -595431234, now seen corresponding path program 1 times [2020-09-11 15:37:33,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:37:33,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690523273] [2020-09-11 15:37:33,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:37:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:37:33,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:37:33,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690523273] [2020-09-11 15:37:33,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:37:33,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:37:33,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535600427] [2020-09-11 15:37:33,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:37:33,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:37:33,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:37:33,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:37:33,843 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-11 15:37:33,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:37:33,918 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-11 15:37:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:37:33,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-11 15:37:33,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:37:33,954 INFO L225 Difference]: With dead ends: 282 [2020-09-11 15:37:33,955 INFO L226 Difference]: Without dead ends: 218 [2020-09-11 15:37:33,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:37:33,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-11 15:37:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-11 15:37:34,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-11 15:37:34,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-11 15:37:34,062 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-11 15:37:34,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:37:34,063 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-11 15:37:34,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:37:34,064 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-11 15:37:34,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 15:37:34,065 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:37:34,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:37:34,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:37:34,066 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:37:34,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:37:34,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1278499900, now seen corresponding path program 1 times [2020-09-11 15:37:34,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:37:34,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937755972] [2020-09-11 15:37:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:37:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:37:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:37:34,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937755972] [2020-09-11 15:37:34,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:37:34,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:37:34,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428606739] [2020-09-11 15:37:34,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:37:34,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:37:34,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:37:34,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:37:34,181 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-09-11 15:37:34,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:37:34,218 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-09-11 15:37:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:37:34,219 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-11 15:37:34,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:37:34,221 INFO L225 Difference]: With dead ends: 242 [2020-09-11 15:37:34,221 INFO L226 Difference]: Without dead ends: 146 [2020-09-11 15:37:34,222 INFO L675 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 [2020-09-11 15:37:34,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-11 15:37:34,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-11 15:37:34,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-11 15:37:34,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-09-11 15:37:34,232 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-09-11 15:37:34,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:37:34,233 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-09-11 15:37:34,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:37:34,233 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-09-11 15:37:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 15:37:34,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:37:34,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:37:34,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:37:34,235 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:37:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:37:34,236 INFO L82 PathProgramCache]: Analyzing trace with hash -453706064, now seen corresponding path program 1 times [2020-09-11 15:37:34,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:37:34,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821729215] [2020-09-11 15:37:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:37:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:37:34,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:37:34,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821729215] [2020-09-11 15:37:34,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:37:34,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:37:34,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327549083] [2020-09-11 15:37:34,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:37:34,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:37:34,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:37:34,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:37:34,367 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-09-11 15:37:34,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:37:34,415 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions. [2020-09-11 15:37:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:37:34,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-11 15:37:34,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:37:34,418 INFO L225 Difference]: With dead ends: 165 [2020-09-11 15:37:34,418 INFO L226 Difference]: Without dead ends: 125 [2020-09-11 15:37:34,419 INFO L675 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 [2020-09-11 15:37:34,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-11 15:37:34,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-09-11 15:37:34,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-11 15:37:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-09-11 15:37:34,428 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11 [2020-09-11 15:37:34,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:37:34,442 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-09-11 15:37:34,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:37:34,442 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-09-11 15:37:34,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:37:34,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:37:34,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:37:34,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:37:34,444 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:37:34,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:37:34,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1227187402, now seen corresponding path program 1 times [2020-09-11 15:37:34,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:37:34,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250162519] [2020-09-11 15:37:34,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:37:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:37:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:37:34,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250162519] [2020-09-11 15:37:34,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:37:34,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:37:34,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699776787] [2020-09-11 15:37:34,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:37:34,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:37:34,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:37:34,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:37:34,564 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 5 states. [2020-09-11 15:37:34,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:37:34,628 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-09-11 15:37:34,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:37:34,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-11 15:37:34,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:37:34,630 INFO L225 Difference]: With dead ends: 122 [2020-09-11 15:37:34,630 INFO L226 Difference]: Without dead ends: 97 [2020-09-11 15:37:34,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:37:34,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-11 15:37:34,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-11 15:37:34,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-11 15:37:34,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-09-11 15:37:34,638 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-09-11 15:37:34,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:37:34,638 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-09-11 15:37:34,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:37:34,639 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-09-11 15:37:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 15:37:34,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:37:34,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:37:34,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:37:34,641 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:37:34,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:37:34,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1770525280, now seen corresponding path program 1 times [2020-09-11 15:37:34,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:37:34,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803573451] [2020-09-11 15:37:34,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:37:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:37:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:37:34,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803573451] [2020-09-11 15:37:34,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:37:34,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:37:34,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575979413] [2020-09-11 15:37:34,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 15:37:34,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:37:34,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 15:37:34,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:37:34,781 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 6 states. [2020-09-11 15:37:34,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:37:34,869 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-09-11 15:37:34,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:37:34,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-09-11 15:37:34,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:37:34,872 INFO L225 Difference]: With dead ends: 92 [2020-09-11 15:37:34,873 INFO L226 Difference]: Without dead ends: 84 [2020-09-11 15:37:34,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:37:34,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-11 15:37:34,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-09-11 15:37:34,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-11 15:37:34,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-09-11 15:37:34,888 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-09-11 15:37:34,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:37:34,889 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-09-11 15:37:34,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 15:37:34,889 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-09-11 15:37:34,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 15:37:34,890 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:37:34,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:37:34,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:37:34,891 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:37:34,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:37:34,891 INFO L82 PathProgramCache]: Analyzing trace with hash -793372783, now seen corresponding path program 1 times [2020-09-11 15:37:34,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:37:34,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675561522] [2020-09-11 15:37:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:37:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:37:35,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:37:35,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675561522] [2020-09-11 15:37:35,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:37:35,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:37:35,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391351164] [2020-09-11 15:37:35,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:37:35,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:37:35,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:37:35,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:37:35,016 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-09-11 15:37:35,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:37:35,032 INFO L93 Difference]: Finished difference Result 115 states and 234 transitions. [2020-09-11 15:37:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:37:35,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-11 15:37:35,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:37:35,033 INFO L225 Difference]: With dead ends: 115 [2020-09-11 15:37:35,033 INFO L226 Difference]: Without dead ends: 54 [2020-09-11 15:37:35,034 INFO L675 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 [2020-09-11 15:37:35,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-11 15:37:35,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-11 15:37:35,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-11 15:37:35,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-09-11 15:37:35,037 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-09-11 15:37:35,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:37:35,038 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-09-11 15:37:35,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:37:35,038 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-09-11 15:37:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 15:37:35,043 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:37:35,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:37:35,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 15:37:35,043 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:37:35,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:37:35,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1598285289, now seen corresponding path program 2 times [2020-09-11 15:37:35,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:37:35,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566179553] [2020-09-11 15:37:35,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:37:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:37:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:37:35,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566179553] [2020-09-11 15:37:35,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:37:35,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:37:35,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982262109] [2020-09-11 15:37:35,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:37:35,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:37:35,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:37:35,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:37:35,156 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-09-11 15:37:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:37:35,175 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2020-09-11 15:37:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:37:35,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-11 15:37:35,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:37:35,178 INFO L225 Difference]: With dead ends: 53 [2020-09-11 15:37:35,178 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:37:35,179 INFO L675 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 [2020-09-11 15:37:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:37:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:37:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:37:35,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:37:35,181 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-11 15:37:35,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:37:35,181 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:37:35,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:37:35,182 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:37:35,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:37:35,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 15:37:35,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:37:35 BasicIcfg [2020-09-11 15:37:35,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:37:35,194 INFO L168 Benchmark]: Toolchain (without parser) took 5158.01 ms. Allocated memory was 140.5 MB in the beginning and 248.5 MB in the end (delta: 108.0 MB). Free memory was 101.3 MB in the beginning and 153.9 MB in the end (delta: -52.6 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:37:35,200 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:37:35,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.35 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 161.5 MB in the end (delta: -60.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-11 15:37:35,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.51 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:37:35,204 INFO L168 Benchmark]: Boogie Preprocessor took 34.11 ms. Allocated memory is still 203.9 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:37:35,205 INFO L168 Benchmark]: RCFGBuilder took 444.58 ms. Allocated memory is still 203.9 MB. Free memory was 157.5 MB in the beginning and 135.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:37:35,209 INFO L168 Benchmark]: TraceAbstraction took 3830.36 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 134.8 MB in the beginning and 153.9 MB in the end (delta: -19.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-11 15:37:35,226 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 782.35 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 161.5 MB in the end (delta: -60.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.51 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.11 ms. Allocated memory is still 203.9 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 444.58 ms. Allocated memory is still 203.9 MB. Free memory was 157.5 MB in the beginning and 135.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3830.36 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 134.8 MB in the beginning and 153.9 MB in the end (delta: -19.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 79 ProgramPointsBefore, 31 ProgramPointsAfterwards, 71 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 666 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2585 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 137 SDtfs, 139 SDslu, 182 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...